Juniper JN0-348
Enterprise Routing and Switching, Specialist
Version: 4.0
Juniper JN0-348 Exam
QUESTION NO: 1
What are two benefits of 802.3ad link aggregation? (Choose two.)
A.
It increases bandwidth.
B.
It ensures symmetrical paths.
C.
It simplifies interface configuration.
D.
It creates physical layer redundancy.
Answer: A,D
Explanation:
QUESTION NO: 2
Which statement is true about IP-IP tunnels?
A.
Intermediate devices must have a route to the destination address of the traffic being tunneled.
B.
Intermediate devices must have a route to both the tunnel source address and the tunnel
destination address.
C.
Intermediate devices must have a route to the tunnel destination address but do not require a
route to the tunnel source address.
D.
Intermediate devices must have a route to the tunnel source address but do not require a route to
the tunnel destination address.
Answer: C
Explanation:
"Pass Any Exam. Any Time." - www.actualtests.com
2
Juniper JN0-348 Exam
QUESTION NO: 3
You have a conference room with an open network port that is used by employees to connect to
the network. You are concerned about rogue switches being connected to this port.
Which two features should you enable on your switch to limit access to this port? (Choose two.)
A.
DHCP snooping
B.
dynamic ARP inspection
C.
MAC limiting
D.
802.1X
Answer: A,B
Explanation:
QUESTION NO: 4
Which statement is correct about IS-IS link state PDUs?
A.
They are used to maintain link-state database synchronization.
B.
They are used to establish adjacencies.
C.
They are used to build the link-state database.
D.
They are used to determine whether the neighbors are Level 1 or Level 2.
Answer: C
Explanation:
"Pass Any Exam. Any Time." - www.actualtests.com
3
Juniper JN0-348 Exam
QUESTION NO: 5
Which Junos feature allows you to combine multiple interfaces into a single bundle?
A.
VRRP
B.
Virtual Chassis
C.
LAG
D.
NSB
Answer: C
Explanation:
QUESTION NO: 6
Which protocol prevents loops and calculates the best path through a switched network that
contains redundant paths?
A.
VRRP
B.
STP
C.
DHCP
D.
IS-IS
Answer: B
Explanation:
"Pass Any Exam. Any Time." - www.actualtests.com
4
Juniper JN0-348 Exam
QUESTION NO: 7
Which two characteristics are true for EBGP peerings? (Choose two.)
A.
EBGP peers must be directly connected.
B.
EBGP connects peer devices in the same autonomous system.
C.
EBGP connects peer devices in two different autonomous systems.
D.
EBGP peers can be connected over a multihop connection.
Answer: C,D
Explanation:
QUESTION NO: 8
What are two advantages of a point-to-point OSPF adjacency? (Choose two.)
A.
Only a DR is elected.
B.
No type 1 LSAs are generated.
C.
No type 2 LSAs are generated.
D.
There is quicker neighbor establishment.
Answer: C,D
Explanation:
QUESTION NO: 9
"Pass Any Exam. Any Time." - www.actualtests.com
5
Juniper JN0-348 Exam
Which two port security features use the DHCP snooping database for additional port security?
(Choose two.)
A.
dynamic ARP inspection
B.
MACsec
C.
IP Source Guard
D.
MAC learning
Answer: A,C
Explanation:
QUESTION NO: 10
You want to configure Layer 2 services over an IP-based tunneling mechanism between two sites.
Which configuration statement is required to accomplish this task?
A.
set interfaces gr-0/0/0.0 family bridge
B.
set interfaces ip-0/0/0.0 encapsulation vlan-bridge
C.
set interfaces gr-0/0/0.0 encapsulation vlan-bridge
D.
set interfaces ip-0/0/0.0 family bridge
Answer: A
Explanation:
QUESTION NO: 11
"Pass Any Exam. Any Time." - www.actualtests.com
6
Juniper JN0-348 Exam
Which two routes belong to the 172.16.0.0/22 aggregate route? (Choose two.)
A.
172.16.4.0/24
B.
172.16.0.0/24
C.
172.16.5.0/24
D.
172.16.3.0/24
Answer: B,D
Explanation:
QUESTION NO: 12
Which two statements are correct regarding the root bridge election process when using STP?
(Choose two.)
A.
A lower system MAC address is preferred.
B.
A higher bridge priority is preferred.
C.
A lower bridge priority is preferred.
D.
A higher system MAC address is preferred.
Answer: A,C
Explanation:
QUESTION NO: 13
What are two reasons for configuring more than one VLAN on a switch? (Choose two.)
"Pass Any Exam. Any Time." - www.actualtests.com
7
Juniper JN0-348 Exam
A.
A group of clients requires that security be applied to traffic entering or exiting the group’s devices.
B.
A group of devices must forward traffic across a WAN.
C.
A group of devices are connected to the same Layer 3 network.
D.
A group of clients requires that the group’s devices receive less broadcast traffic than they are
currently receiving.
Answer: A,D
Explanation:
QUESTION NO: 14
Referring to the exhibit, which configuration will force traffic to always use ae0.0 as long as it is
active?
"Pass Any Exam. Any Time." - www.actualtests.com
8
Juniper JN0-348 Exam
A.
B.
C.
D.
"Pass Any Exam. Any Time." - www.actualtests.com
9
Juniper JN0-348 Exam
Answer: C
Explanation:
QUESTION NO: 15
What are two characteristics of OSPF ABRs? (Choose two.)
A.
ABRs transmit routing information between the backbone and other areas.
B.
ABRs cannot be part of the backbone and another area at the same time.
C.
ABRs inject routing information from outside the OSPF domain.
D.
ABRs link two OSPF areas.
Answer: A,D
Explanation:
QUESTION NO: 16
Which statement is correct about trunk ports?
"Pass Any Exam. Any Time." - www.actualtests.com
10
Juniper JN0-348 Exam
A.
Trunk ports must have an IRB assigned to accept VLAN tagged traffic.
B.
By default, trunk ports accept only VLAN tagged traffic.
C.
By default, a trunk port can have only a single VLAN assigned.
D.
Trunk ports must have an IRB assigned to accept untagged traffic.
Answer: B
Explanation:
QUESTION NO: 17
Your network is configured with dynamic ARP inspection (DAI) using the default parameters for all
the DHCP and ARP related configurations. You just added a new device connected to a trunk port
and configured it to obtain an IP address using DHCP.
Which two statements are correct in this scenario? (Choose two.)
A.
The DHCP server assigns the IP addressing information to the new device.
B.
DAI validates the ARP packets for the new device against the DHCP snooping database.
C.
The ARP request and response packets for the new device will bypass DAI.
D.
DHCP snooping adds the DHCP assigned IP address for the new device to its database.
Answer: A,B
Explanation:
QUESTION NO: 18
"Pass Any Exam. Any Time." - www.actualtests.com
11
Juniper JN0-348 Exam
Which two requirements must be satisfied before graceful restart will work? (Choose two.)
A.
a stable network topology
B.
a neighbor configured with BFD
C.
a neighbor configured with graceful restart
D.
a neighbor with an uptime greater than an hour
Answer: A,C
Explanation:
QUESTION NO: 19
You configured a GRE tunnel that traverses a path using default MTU settings. You want to
ensure that packets are not dropped of fragmented.
In this scenario, what is the maximum packet size that would traverse the GRE tunnel?
A.
1500
B.
1400
C.
1524
D.
1476
Answer: D
Explanation:
QUESTION NO: 20
"Pass Any Exam. Any Time." - www.actualtests.com
12
Juniper JN0-348 Exam
You have configured the router with an IS-IS interface metric of 2048. However, the IS-IS interface
metric of 63 is being applied for the interface of this router.
What must you do to enable the larger metric value?
A.
Enable wide metrics.
B.
Disable narrow metrics.
C.
Restart the IS-IS protocol.
D.
Enable level 1 IS-IS routing.
Answer: A
Explanation:
QUESTION NO: 21
When configuring firewall filters, which function does the interface-specific parameter enable on an
EX Series switch?
A.
The interface-specific parameter is required to configure port-specific counters.
B.
The interface-specific parameter is required to configure VLAN-specific counters.
C.
The interface-specific parameter is required to configure VLAN-based filters.
D.
The interface-specific parameter is required to configure port-based firewall filters.
Answer: A
Explanation:
"Pass Any Exam. Any Time." - www.actualtests.com
13
Juniper JN0-348 Exam
QUESTION NO: 22
Which two statements describe BGP attributes? (Choose two.)
A.
BGP attributes help determine the best path to a destination.
B.
The origin attribute indicates the autonomous systems through which the route has traversed.
C.
BGP attributes are always optional.
D.
The AS path attribute indicates the autonomous systems through which the route has traversed.
Answer: A,D
Explanation:
QUESTION NO: 23
Which two OSPF header fields must match to form an adjacency over a broadcast connection?
(Choose two.)
A.
router priority
B.
options
C.
hello interval
D.
neighbor
Answer: B,C
Explanation:
QUESTION NO: 24
"Pass Any Exam. Any Time." - www.actualtests.com
14
Juniper JN0-348 Exam
You want to advertise only a default route into a new area, which will be called area 7.
In this scenario, which configuration statement would solve this problem?
A.
user@host# set protocols ospf area 0.0.0.7 nssa default-lsa default-metric 10
B.
user@host# set protocols ospf area 0.0.0.7 stub no-summaries
C.
user@host# set protocols ospf area 0.0.0.7 stub default-metric 10
D.
user@host# set protocols ospf area 0.0.0.7 stub
Answer: A
Explanation:
QUESTION NO: 25
Which static route next-hop value indicates that the packet will be silently dropped?
A.
resolve
B.
discard
C.
reject
D.
next-table
Answer: B
Explanation:
QUESTION NO: 26
"Pass Any Exam. Any Time." - www.actualtests.com
15
Juniper JN0-348 Exam
Which area is reserved for the OSPF backbone?
A.
Area 0.0.0.0
B.
Area 1.1.1.1
C.
Area 2.2.2.2
D.
Area 3.3.3.3
Answer: A
Explanation:
QUESTION NO: 27
You want to configure your Junos device so that routing information from certain prefixes on a
neighboring router are ignored.
What should you configure on your device?
A.
It interface
B.
firewall rule
C.
martian address
D.
vt interface
Answer: C
Explanation:
QUESTION NO: 28
"Pass Any Exam. Any Time." - www.actualtests.com
16
Juniper JN0-348 Exam
Which three mechanisms are associated with the bridging process? (Choose three.)
A.
blocking
B.
flooding
C.
aging
D.
filtering
E.
listening
Answer: B,C,D
Explanation:
QUESTION NO: 29
Your network connections to the Internet through two different ISPs using EBGP. You must ensure
that ISP1 is the primary path used for all traffic entering your network while using ISP2 as a
backup path.
In this scenario, which statement is correct?
A.
You should use a lower MED value on routes sent to ISP1.
B.
You should assign a higher local preference on routes that you are sending to ISP1.
C.
You should change the next hop for all routers sent to ISP2.
D.
You should prepend your local AS number three times on routes that you are sending to ISP2.
Answer: D
Explanation:
"Pass Any Exam. Any Time." - www.actualtests.com
17
Juniper JN0-348 Exam
QUESTION NO: 30
Which two situations would cause dynamic ARP inspection to drop traffic? (Choose two.)
A.
if no IP-to-MAC address entry exists in the DHCP snooping database
B.
if the IP address in the ARP packet is deemed invalid
C.
if the requested MAC address exceeds the configured limit on the port
D.
if the ARP packet comes from a port that has been configured as trusted
Answer: A,B
Explanation:
QUESTION NO: 31
Which device is used to separate collision domains?
A.
switch
B.
router
C.
hub
D.
firewall
Answer: A
Explanation:
"Pass Any Exam. Any Time." - www.actualtests.com
18
Juniper JN0-348 Exam
QUESTION NO: 32
What is the default BGP group type on a Junos device?
A.
internal
B.
external
C.
multihop
D.
null
Answer: B
Explanation:
QUESTION NO: 33
In which two STP states is a port active and a MAC address learned? (Choose two.)
A.
blocking
B.
forwarding
C.
disabled
D.
learning
Answer: B,D
Explanation:
QUESTION NO: 34
"Pass Any Exam. Any Time." - www.actualtests.com
19
Juniper JN0-348 Exam
You are enabling dynamic ARP inspection on an EX4300 switch.
Which service is enabled by default in this scenario?
A.
DHCP snooping
B.
persistent MAC learning
C.
MAC limiting
D.
IP Source Guard
Answer: A
Explanation:
QUESTION NO: 35
Which two sequences correctly describe the processing order of firewall filters on an EX Series
switch? (Choose two.)
A.
router filter > VLAN filter > port filter > transmit packet
B.
port filter > VLAN filter > router filter > transmit packet
C.
receive packet > port filter > VLAN filter > router filter
D.
receive packet > router filter > VLAN filter > port filter
Answer: A,C
Explanation:
QUESTION NO: 36
"Pass Any Exam. Any Time." - www.actualtests.com
20
Juniper JN0-348 Exam
Which statement is true when using LAGs with an EX4300?
A.
Speeds on member links can differ.
B.
Member links must be contiguous.
C.
Half duplex is supported on the LAG.
D.
You can have up to 16 member links per LAG.
Answer: D
Explanation:
QUESTION NO: 37
How many bytes of overhead are added to a packet traversing a GRE tunnel?
A.
20
B.
24
C.
12
D.
16
Answer: B
Explanation:
QUESTION NO: 38
You added a new ESXi host connected to port ge-0/0/1. One of the VMs configured with VLAN 10
is not reachable from any other device on the switch. To troubleshoot, you decide to verify if the
"Pass Any Exam. Any Time." - www.actualtests.com
21
Juniper JN0-348 Exam
VM’s MAC address is learned properly under VLAN 10.
Which command would you use in this scenario?
A.
show ethernet-switching table vlan-id 10
B.
show interfaces ge-0/0/1 detail
C.
show vlans 10
D.
monitor interface ge-0/0/1
Answer: A
Explanation:
QUESTION NO: 39
You are adding a new EX4300 member switch to your existing EX4300 Virtual Chassis. However,
the new member is not running the same Junos version as the other members.
By default, what is the expected behavior in this scenario?
A.
the Virtual Chassis will transition into a split brain situation between the existing master Routing
Engine and the switch running the different version.
B.
The new switch will automatically pull the correct version from the master Routing Engine and
perform the necessary upgrade.
C.
The new switch will be assigned a member ID and then placed in an inactive state.
D.
The new switch is not recognized by the Virtual Chassis.
Answer: C
"Pass Any Exam. Any Time." - www.actualtests.com
22
Juniper JN0-348 Exam
Explanation:
QUESTION NO: 40
What are the three possible port states when using RSTP? (Choose three.)
A.
forwarding
B.
learning
C.
discarding
D.
listening
E.
tagging
Answer: A,B,C
Explanation:
QUESTION NO: 41
What are two characteristics of IS-IS CSNPs? (Choose two.)
A.
IS-IS CSNPs contain header information for all link-state PDUs.
B.
IS-IS CSNPs are used to request a copy of a missing link state PDU.
C.
IS-IS CSNPs are used to maintain the link-state database synchronization.
D.
IS-IS CSNPs contain header information for specific requested link-state PDUs.
"Pass Any Exam. Any Time." - www.actualtests.com
23
Juniper JN0-348 Exam
Answer: A,C
Explanation:
QUESTION NO: 42
What are two methods for reducing the size of an OSPF link-state database? (Choose two.)
A.
Use unique router IDs where possible.
B.
Use identical link metrics where possible.
C.
Use point-to-point interface types where possible.
D.
Use stub areas where possible.
Answer: C,D
Explanation:
QUESTION NO: 43
Click the Exhibit button.
"Pass Any Exam. Any Time." - www.actualtests.com
24
Juniper JN0-348 Exam
Referring to the exhibit, which router becomes the OSPF DR when all routers are powered on at
the same time?
A.
R3
B.
R4
C.
R1
D.
R2
Answer: D
Explanation:
QUESTION NO: 44
"Pass Any Exam. Any Time." - www.actualtests.com
25
Juniper JN0-348 Exam
Click the Exhibit button.
Based on the output shown in the exhibit, which statement is correct?
A.
This switch has been elected as the root bridge
B.
This switch has a bridge priority of 32k
C.
The ge-0/0/15 interface is using the default port cost
D.
The ge-0/0/9 interface is using the default priority value
Answer: A
Explanation:
QUESTION NO: 45
Click the Exhibit button.
"Pass Any Exam. Any Time." - www.actualtests.com
26
Juniper JN0-348 Exam
Referring to the exhibit, Router-1 is attempting to form an EBGP session with Router-2. However,
BGP routes are never exchanged between Router-1 and Router-2.
What is causing the problem?
A.
The TCP-MSS value is set too low
B.
The EXT group is not configured as an external type BGP peering session
C.
The EBGP session is configured to use the wrong AS
D.
The keep all statement is preventing the session from establishing
Answer: B
Explanation:
QUESTION NO: 46
"Pass Any Exam. Any Time." - www.actualtests.com
27
Juniper JN0-348 Exam
Click the Exhibit button.
Given the route shown in the exhibit, which two prefixes contribute to the aggregate route?
(Choose two.)
A.
172.12.31.0/24
B.
172.12.33.0/24
C.
172.12.30.0/24
D.
172.12.32.0/24
Answer: A,C
Explanation:
QUESTION NO: 47
Click the Exhibit button.
"Pass Any Exam. Any Time." - www.actualtests.com
28
Juniper JN0-348 Exam
Your router is configured to peer with your ISP’s router using BGP. You can only control your BGP
configuration.
Which address families are negotiated between the two BGP peers shown in the exhibit?
A.
inet-unicast inet-vpn-unicast 12vpn-signaling
B.
inet-unicast
C.
inet-vpn-unicast
D.
inet-unicast inet-vpn-unicast 12vpn
Answer: B
"Pass Any Exam. Any Time." - www.actualtests.com
29
Juniper JN0-348 Exam
Explanation:
QUESTION NO: 48
Click the Exhibit button.
"Pass Any Exam. Any Time." - www.actualtests.com
30
Juniper JN0-348 Exam
Referring to the exhibit, what is the problem?
A.
The LAG member interfaces are configured across different line cards
B.
LAG requires more than two member links
C.
LACP is required for LAG to work
D.
Aggregated interfaces must be defined under the chassis stanza
Answer: D
Explanation:
QUESTION NO: 49
Click the Exhibit button.
"Pass Any Exam. Any Time." - www.actualtests.com
31
Juniper JN0-348 Exam
Referring to the exhibit, which two statements are correct? (Choose two.)
A.
Router A does not send routes learned from Router E to Router B, Router C, and Router D
B.
Router A sends routes learned from Router E to Router B, Router C, and Router D
C.
Router A sends routes learned from Router D to Router B and Router C
D.
Router A does not send routes learned from Router D to Router B and Router C
Answer: B,D
Explanation:
QUESTION NO: 50
Click the Exhibit button.
"Pass Any Exam. Any Time." - www.actualtests.com
32
Juniper JN0-348 Exam
Which statement is correct about the ISO NET address shown in the exhibit?
A.
The system identifier is 6800.1001.00
B.
The area identifier is 0001
C.
The authority and format identifier (AFI) is 00
D.
This is not a valid NET address
Answer: B
Reference: https://www.juniper.net/documentation/en_US/junos/topics/concept/is-is-routingoverview.html
"Pass Any Exam. Any Time." - www.actualtests.com
33
Juniper JN0-348 Exam
QUESTION NO: 51
Click the Exhibit button.
Which statement is true about the configuration shown in the exhibit?
"Pass Any Exam. Any Time." - www.actualtests.com
34
Juniper JN0-348 Exam
A.
Only the local-pref import policy will be evaluated when routes are learned from neighbor
172.30.1.1
B.
Only the add-community import policy will be evaluated when routes are learned from neighbor
172.30.1.1
C.
No import policy will be evaluated when routes are learned from neighbor 172.30.2.1
D.
Both the add-community and local-pref import policies will be evaluated when routes are learned
from neighbor 172.30.2.1
Answer: D
Explanation:
QUESTION NO: 52
Click the Exhibit button.
Referring to the exhibit, what do the asterisks (*) indicate?
A.
The entries are new
B.
The entries are stale
C.
The router originated the entries
D.
The router received the entries
"Pass Any Exam. Any Time." - www.actualtests.com
35
Juniper JN0-348 Exam
Answer: C
Reference: https://www.juniper.net/documentation/en_US/junos/topics/reference/commandsummary/show-ospf-database.html
QUESTION NO: 53
Click the Exhibit button.
In the exhibit, each IP subnet in the network is associated with a unique VLAN ID.
Which action will ensure that Host C will communicate with Host A and Host B?
A.
Configure an IRB interface for each VLAN and associate it with its corresponding VLAN
B.
Configure a port-based ACL that permits inter-VLAN routing for all configured VLANs
C.
Configure all switch ports connecting to the host devices as trunk ports associated with all VLANs
D.
Configure all switch ports connecting to the host devices as access ports associated with a
common VLAN
"Pass Any Exam. Any Time." - www.actualtests.com
36
Juniper JN0-348 Exam
Answer: A
Explanation:
QUESTION NO: 54
Click the Exhibit button.
A recent security audit indicates that peer-to-peer applications are allowed on the guest VLAN and
employees may have been using the guest VLAN for this purpose. You deploy the configuration
shown in the exhibit, but it does not stop the peer-to-peer traffic.
In this scenario, what must you do to implement the security policy?
A.
Implement 802.1X on the guest VLAN
B.
"Pass Any Exam. Any Time." - www.actualtests.com
37
Juniper JN0-348 Exam
Attach the filter to the VLAN
C.
Deploy storm control to block unknown unicast traffic
D.
Use persistent MAC learning
Answer: B
Explanation:
QUESTION NO: 55
Click the Exhibit button.
Referring to the output shown in the exhibit, which two statements are true? (Choose two.)
A.
The route is active
B.
The route is not active
C.
The route is a generate route
D.
"Pass Any Exam. Any Time." - www.actualtests.com
38
Juniper JN0-348 Exam
The route is an aggregate route
Answer: A,C
Explanation:
QUESTION NO: 56
Click the Exhibit button.
"Pass Any Exam. Any Time." - www.actualtests.com
39
Juniper JN0-348 Exam
Referring to the exhibit, which configuration change is needed for an IS-IS Level 1 adjacency
between R1 and R2?
"Pass Any Exam. Any Time." - www.actualtests.com
40
Juniper JN0-348 Exam
A.
Configure the lo0 family ISO address 49.0002.0010.0042.0002.00 on R2
B.
Configure the lo0 family ISO address 49.0002.0010.0042.0002.00 on R1
C.
Enable Level 2 on R1’s ge-0/0/1 interface
D.
Disable Level 2 on R2’s ge-0/0/1 interface
Answer: A
Explanation:
QUESTION NO: 57
Click the Exhibit button.
"Pass Any Exam. Any Time." - www.actualtests.com
41
Juniper JN0-348 Exam
Based on the traceoptions output shown in the exhibit, what is the problem with the adjacency?
A.
connectivity
B.
authentication mismatch
C.
MTU mismatch
D.
area mismatch
Answer: D
"Pass Any Exam. Any Time." - www.actualtests.com
42
Juniper JN0-348 Exam
Explanation:
QUESTION NO: 58
Click the Exhibit button.
Referring to the output shown in the exhibit, which statement is correct?
A.
11.0.0.108/32 is being per-flow load-balanced
B.
11.0.0.102/32 is being per-packet load-balanced
C.
11.0.0.102/32 is being per-flow load-balanced
D.
11.0.0.108/32 is being per-packet load-balanced
"Pass Any Exam. Any Time." - www.actualtests.com
43
Juniper JN0-348 Exam
Answer: D
Explanation:
QUESTION NO: 59
Click the Exhibit button.
You manage the Layer 2 network shown in the exhibit. You experience a failure on the ge-0/0/0
link between Switch-1 and Switch-2.
Which statement is correct about the expected behavior?
A.
Switch-2 will remove itself from the RSTP topology
B.
Switch-2’s ge-0/0/2 port role and state will transition to root and forwarding
C.
Switch-2 will become the root bridge for a separate RSTP topology
D.
Switch-2’s ge-0/0/2 port role and state will remain as designated and forwarding
"Pass Any Exam. Any Time." - www.actualtests.com
44
Juniper JN0-348 Exam
Answer: B
Explanation:
QUESTION NO: 60
Click the Exhibit button.
You want to prevent rogue BPDUs from lab devices reaching the internal through the Lab_Switch
device.
Referring to the exhibit, what should be done to accomplish this task?
A.
Configure the three lab ports as edge ports
B.
Configure an input filter on interface xe-0/2/0 to discard the RSTP packets
C.
Configure the three lab ports under the protocols layer2-control bpdu-block hierarchy on the switch
D.
Configure protocols rstp with the bpdu-block-on-edge parameter for interface xe-0/2/0
Answer: C
"Pass Any Exam. Any Time." - www.actualtests.com
45
Juniper JN0-348 Exam
Explanation:
QUESTION NO: 61
Click the Exhibit button.
Referring to the exhibit, which two statements about BGP prefixes advertised by R1 to AS 65501
are true? (Choose two.)
A.
R1 will modify the originator ID attribute in prefixes advertised to AS 65501
B.
R1 will modify the AS path attribute in prefixes advertised to AS 65501
C.
R1 will modify the next-hop attribute in prefixes advertised to AS 65501
D.
R1 will modify the cluster list attribute in prefixes advertised to AS 65501
Answer: A,C
Explanation:
"Pass Any Exam. Any Time." - www.actualtests.com
46
Juniper JN0-348 Exam
QUESTION NO: 62
Which two statements about DHCP snooping are correct? (Choose two.)
A.
DHCP snooping inspects all DHCP packets on untrusted ports.
B.
By default, the Junos OS treats access ports as trusted and trunk ports as untrusted.
C.
DHCP snooping uses ARP to add statically defined IP addresses to its database.
D.
The DHCP database maps IP addresses, MAC addresses, and the associated VLAN.
Answer: A,D
Explanation:
QUESTION NO: 63
Which statement is true about Layer 2 firewall filters on EX Series switches?
A.
They are stateful and evaluated by the forwarding plane.
B.
They are stateless and evaluated by the control plane.
C.
They are stateful and evaluated by the control plane.
D.
They are stateless and evaluated by the forwarding plane.
Answer: D
Explanation:
QUESTION NO: 64
"Pass Any Exam. Any Time." - www.actualtests.com
47
Juniper JN0-348 Exam
Which OSPF packet type is sent when an OSPF router detects its database is stale?
A.
database description
B.
link-state acknowledgment
C.
link-state request
D.
hello
Answer: C
Explanation:
QUESTION NO: 65
Click the Exhibit button.
Referring to the exhibit, all users connected to the same VLAN can communicate with each other,
but not with users on other VLANs in this network.
What must be configured to enable communication between the VLANs?
"Pass Any Exam. Any Time." - www.actualtests.com
48
Juniper JN0-348 Exam
A.
The switch ports to which the users are connected should be configured as trunk ports.
B.
A separate routing device is required to forward traffic between the configured VLANs.
C.
A logical IRB interface must be created and assigned to each VLAN.
D.
A single logical IRB interface must be created and assigned to all three VLANs.
Answer: C
Explanation:
QUESTION NO: 66
Click the Exhibit button.
"Pass Any Exam. Any Time." - www.actualtests.com
49
Juniper JN0-348 Exam
"Pass Any Exam. Any Time." - www.actualtests.com
50
Juniper JN0-348 Exam
Referring to the exhibit, Router-1 and Router-2 are failing to form an IS-IS adjacency.
"Pass Any Exam. Any Time." - www.actualtests.com
51
Juniper JN0-348 Exam
What should you do to solve the problem?
A.
Remove the overloaded statement from Router-1.
B.
Change the IP subnet masks to match on the ge-0/0/2 interfaces of both routers.
C.
Change the ISO areas on the lo0 interfaces to match on both routers.
D.
Remove the ISO address from ge-0/0/2 on Router-1.
Answer: D
Explanation:
QUESTION NO: 67
What are two interarea OSPF LSA types? (Choose two.)
A.
Type 1 router LSAs
B.
Type 3 summary LSAs
C.
Type 4 ASBR summary LSAs
D.
Type 2 network LSAs
Answer: B,C
Explanation:
QUESTION NO: 68
You want to use filter-based forwarding (FBF) to forward traffic sourced from subnet 10.0.0.0/24 to
a specific destination.
"Pass Any Exam. Any Time." - www.actualtests.com
52
Juniper JN0-348 Exam
Which two routing instance types would enable you to accomplish this task? (Choose two.)
A.
virtual switch
B.
virtual routing and forwarding
C.
virtual router
D.
forwarding
Answer: C,D
Explanation:
QUESTION NO: 69
Which statement is true about IP-IP tunnels?
A.
The time-to-live value of the original packet is decremented.
B.
IP-IP tunnels are protocol agnostic.
C.
The packet is encapsulated unchanged before entering the tunnel.
D.
The packet header is replaced before entering the tunnel.
Answer: B
Explanation:
QUESTION NO: 70
When electing a DIS in an IS-IS network, what is used to break a priority tie?
"Pass Any Exam. Any Time." - www.actualtests.com
53
Juniper JN0-348 Exam
A.
highest MAC address
B.
highest router ID
C.
lowest MAC address
D.
lowest router ID
Answer: A
Explanation:
QUESTION NO: 71
Which two statements are true about high availability on Junos devices? (Choose two.)
A.
BFD is faster at detecting failures than default GRE or OSPF timers.
B.
BFD is slower at detecting failures than default GRE or OSPF timers.
C.
NSR is dependent on helper routers to assist the routing platform in restoring routing protocol
information.
D.
NSR is independent of helper routers to assist the routing platform in restoring routing protocol
information.
Answer: A,D
Explanation:
QUESTION NO: 72
Click the Exhibit button.
"Pass Any Exam. Any Time." - www.actualtests.com
54
Juniper JN0-348 Exam
You are attempting to set up VRRP with R1 and R2 being participating members. You want R1 to
be the master router and R2 to be the backup router with the virtual router they create being at
address 172.25.100.1. The virtual router is not pinging from either User A or User B.
"Pass Any Exam. Any Time." - www.actualtests.com
55
Juniper JN0-348 Exam
Referring to the exhibit, what must be done to correct the problem?
A.
A VRRP policy is needed on R1 and R2.
B.
The VRRP group value on R1 and R2 must match.
C.
The VRRP priority value on R1 and R2 must match.
D.
A VRRP authentication type value is needed on R1 and R2.
Answer: B
Explanation:
QUESTION NO: 73
Click the Exhibit button.
Both the R1 and R2 devices are advertising prefix X into AS 65530 with the BGP attributes shown
in the exhibit.
Which statement is correct in this scenario?
"Pass Any Exam. Any Time." - www.actualtests.com
56
Juniper JN0-348 Exam
A.
R2’s version of prefix X will be active because of the local preference attribute.
B.
R1’s version of prefix X will be active because of the local preference attribute.
C.
R1’s version of prefix X will be active because of the AS path attribute.
D.
R2’s version of prefix X will be active because of the AS path attribute.
Answer: D
Explanation:
QUESTION NO: 74
Click the Exhibit button.
"Pass Any Exam. Any Time." - www.actualtests.com
57
Juniper JN0-348 Exam
Referring to the exhibit, which policy will export routes to IBGP peers?
A.
static-3
B.
static-4
C.
static-1
D.
static-2
Answer: B
"Pass Any Exam. Any Time." - www.actualtests.com
58
Juniper JN0-348 Exam
Explanation:
"Pass Any Exam. Any Time." - www.actualtests.com
59