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Name
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Date
CCNA DISCOVERY 1
MODULE 6 – NETWORK SERVERS
STUDY GUIDE
6.1.1 Client/Server Relationships
1.
What is a server?
2.
3.
What factor is crucial to enabling
complex interactions?
What is a client?
4.
What is the key characteristic of
client/server systems?
5.
What is the most commonly used
instance of a client/server system?
A host running a software
application that provides
information or services to other
hosts connected to the network
They all use agreed standards
and protocols
A computer application that
someone uses to accept
information held on a server
The client sends a request to a
server and the server responds by
carrying out a function
Web browser and web server
6.1.1.4 Activity
6.1.2 Role of Protocols in Client/Server Communication
6.
What does HTTP define?
The format of the web page
requests and responses
exchanged between the client and
the server
7.
What is the transport protocol that TCP
manages the individual
conversations between web
servers and web clients?
8.
What else does TCP provide?
Flow control and
acknowledgment of packets
exchanged between hosts
9.
What is the most common
Internet Protocol (IP)
internetwork protocol?
10.
What is IP responsible for?
Taking the formatted segments
from TCP, assigning the logical
addressing and encapsulating
them into packets for routing to
the destination host
11.
What governs how the bits are
Standards and protocols for the
represented on the media, how the physical media
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signals are sent over the media,
and how they are interpreted by
the receiving hosts?
6.1.3 TCP and UDP Transport Protocols
12.
What are the two most common
transport protocols?
13.
What protocol is used when an
application requires
acknowledgment that a message
is delivered?
What type of system is UDP?
14.
6.1.3.4 Activity
6.1.4 TCP/IP Port Numbers
15.
What is a port?
16.
17.
18.
What is the port number for
HTTP services?
What is the port number for FTP
services?
How is the source port identified?
TCP – Transmission Control
Protocol
UDP – User Datagram Protocol
TCP
Best effort delivery
A numeric identifier within each
segment that is used to keep track
of specific conversations and
destination services requested
80
21
It is randomly generated by the
sending device to identify a
conversation between two
devices
19.
What is a socket?
The combination of the source
and destination IP address and
the services and destination port
number
20.
What is the purpose of the socket? It is used to identify the server
and service being requested by
the client
6.2.1 Domain Name Service (DNS)
21.
What does a DNS server do?
Associates hostnames in a
domain with corresponding IP
address
22.
What is the port number for DNS
53
services?
6.2.1.3 Lab Activity
6.2.2 Web Client and Servers
23.
What is the most commonly used HTML
markup language?
24.
Is HTTP a secure protocol?
NO
25.
Where are requests for secure
Port 443
HTTP sent?
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6.2.2.2 Packet Tracer Activity
6.2.3 FTP Clients and Servers
26.
What does FTP do?
27.
What port numbers are associated
with FTP?
6.2.3.2 GUI FTP Client
6.2.3.3 Lab Activity
6.2.4 Email Clients and Servers
28.
What is one of the most popular
client/server applications on the
Internet?
29.
What are some of the protocols
used in processing email?
30.
What is SMTP used for?
31.
35.
What port number is associated
with SMTP requests?
What does SMTP stand for?
What does the acronym POP
stand for?
What port number is associated
with POP3?
What is POP3 used for?
36.
What is SMTP used for?
32.
33.
34.
37.
What port number is associated
with IMAP?
38.
What is the difference between
POP3 and IMAP4?
6.2.4.4 Lab Activity
6.2.5 IM Clients and Servers
39.
What is one of the most popular
communication tools today?
40.
Can you transfer video, music,
and speech files using IM?
6.2.6 Voice Clients and Servers
41.
What is IP telephony?
42.
How do you get started using
Internet telephone?
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Provides an easy method to
transfer files from one computer
to another
21 – to request services
20 – to transfer data files
Email
SMTP, POP3, IMAP4
To send messages to its local
email server
25
Simple Mail Transfer Protocol
Post Office Protocol
110
Used by the client to contact
the server and download
mail. Mail is deleted off the
server
To forward mail to the server.
Server accepts and stores mail in
the proper queue
143
With IMAP, mail is maintained
on the server
Instant messaging
Yes
Using an IP packet to carry
digitized voice as data
Download the client software
from one of the companies that
provide the service
6.2.7 Port Numbers
43.
How many ports are available?
44.
What are the three categories of
ports?
45.
Who assigns and manages ports?
46.
What are well-known ports?
47.
What is the range of port numbers
for well-known ports?
48.
What port is assigned for Telnet?
6.2.7.2 Activity
6.3.1 Protocol Interaction
49.
What does successful
communication between hosts
require?
50.
What is a protocol stack?
51.
What are the benefits of a layered
model?
52.
What are the layers of the TCP/IP
model?
Which layer of the TCP/IP model
is responsible for end-to-end
delivery services?
Where is error checking
information found?
53.
54.
6.3.2.3 Activity
6.3.3 Open Systems Interconnect Model
55.
Who developed the OSI model?
56.
When was the OSI model
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65,535
Well-known, registered, private
ICANN – Internet
Corporation for Assigned
Names and Numbers
Ports that are associated with
common network applications
1 – 1023
23
Interaction between a number of
protocols
A layered hierarchy with each
higher-level protocol depending
on the services of the protocols in
the lower levels
1. assists in protocol design
2. fosters competition
because products from
different vendors can
work together
3. prevents technology
changes in one layer from
affecting other layers
4. provides a common
language to describe
network functions and
capabilities
Application, Transport, Internet,
Network Access
Transport
Frame trailer
International Organization of
Standardization (ISO)
1984
57.
58.
59.
60.
61.
developed?
How many layers are there in the
OSI model?
What are the layers of the OSI
model?
7
Application, Presentation,
Session, Transport, Network,
Data Link, Physical
What is an acronym for helping to All People Seem to Need Data
remember the OSI layer?
Processing or Please Do Not
Throw Sausage Pizza Away
Which layer encrypts and
Presentation
decrypts data and compresses and
decompresses data?
Which layer detects and corrects
Data link
frame transmit errors?
6.3.3.3 Activity
6.3.3.4 Activity
6.3.3.5 Packet Tracer Activity
6.5.1.1 Chapter Quiz
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