Tên học phần: Mạng Máy Tính
Số lượng câu hỏi: 200
Cho phép trộn các đáp án: Có
Cho phép thay đổi thứ tự các câu hỏi: Có
Bảng thống kê tổng hợp
Q21
Which type of UTP cable is used to connect a PC to a switch
port?
A) Crossover
B) Console
C) Straight-through
D) Rollover
File
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Mức độ:
Hiểu
CLO
1
Chương/Bài/Nội dung:
Chương 2: Physical Layer
Q22
Which kind of data can be transmitted in the physical layer?
A) Frame
B) Signal
C) Packet
D) Datagram
File
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Mức độ:
Nhớ
CLO
1
Chương/Bài/Nội dung:
Chương 2: Physical Layer
Q23
Which transmission media provides the highest transmission
speed in a network?
A) Coaxial cable
B) Twisted pair cable
C) Optical fiber
D) Electrical cable
File
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Mức độ:
Vận dụng
CLO
2
Chương/Bài/Nội dung:
Chương 2: Physical Layer
Q24
The physical layer translates logical communication requests
from the _____ into hardware operations.
A) Data link layer
B) Network layer
C) Transport layer
D) Application layer
File
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1
Chương/Bài/Nội dung:
Chương 2: Physical Layer
Q25
What is the purpose of the OSI physical layer?
A) Controlling access to media
B) Transmitting bits across the local media
C) Exchange frames between nodes over physical network media
D) Performing error detection on received frames
File
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1
Chương/Bài/Nội dung:
Chương 2: Physical Layer
Q26
The _____ is the physical transmission over which a message
travels
A) Path
B) Medium
C) Route
D) Protocol
File
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1
Chương/Bài/Nội dung:
Chương 2: Physical Layer
Q27
Which of the following statements is TRUE for optical fiber?
A) All of the mentioned
B) Large bandwidth
C) Long distance transmission
D) The cost of communication is increasingly independent of
distance
File
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2
Chương/Bài/Nội dung:
Chương 2: Physical Layer
Q28
What is the commonly used unit for measuring the speed of
data transmission?
A) Byte
B) Bit per second
C) Nano second
D) Mega Hertz
File
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2
Chương/Bài/Nội dung:
Chương 2: Physical Layer
Q29
What does the term “attenuation” mean in data
communication?
A) Strengthening of a signal by a networking device
B) Leakage of signals from one cable pair to another
C) Loss of signal strength as distance increases
D) Time for a signal to reach its destination
File
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2
Chương/Bài/Nội dung:
Chương 2: Physical Layer
Q30
Which type of transmission sends data in both directions at the
same time?
A) Simplex
B) Half-duplex
C) Full-duplex
D) Multiplex
File
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1
Chương/Bài/Nội dung:
Chương 2: Physical Layer
Q31
What type of cable is commonly used for Ethernet networks?
A) Coaxial cable
B) Fiber optic cable
C) Twisted pair cable
D) Serial cable
File
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2
Chương/Bài/Nội dung:
Chương 2: Physical Layer
Q32
Which of the following is NOT a common network topology?
A) Bus
B) Star
C) Mesh
D) Circular
File
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2
Chương/Bài/Nội dung:
Chương 2: Physical Layer
Q33
Which type of modulation involves changing the amplitude of
the signal to represent data?
A) Amplitude modulation (AM)
B) Frequency modulation (FM)
C) Phase modulation (PM)
D) All of the above
File
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Mức độ:
Phân tích
CLO
2
Chương/Bài/Nội dung:
Chương 2: Physical Layer
Q34
Which of the following is NOT a factor that affects the quality
of a signal?
A) Attenuation
B) Interference
C) Crosstalk
D) Bandwidth
File
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2
Chương/Bài/Nội dung:
Chương 2: Physical Layer
Q35
Which of the following is a characteristic of the physical layer
in the OSI model?
A) Provides end-to-end delivery of data
B) Establishes, maintains, and terminates connections
C) Determines the route for data between networks
D) Transmits bits over a communication channel
File
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1
Chương/Bài/Nội dung:
Chương 2: Physical Layer
Q36
Which of the following is NOT a common physical layer
standard for wired Ethernet networks?
A) 10BASE-T
B) 100BASE-TX
C) 1000BASE-T
D) 802)11ac
File
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2
Chương/Bài/Nội dung:
Chương 2: Physical Layer
Q37
Wireless transmission of signals can be done via _____
A) radio waves
B) microwaves
C) infrared
D) All of the mentioned
File
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2
Chương/Bài/Nội dung:
Chương 2: Physical Layer
Q38
Which of the following is NOT a type of Ethernet cable?
A) Coaxial cable
B) Twisted pair cable
C) Fiber optic cable
D) Parallel cable
File
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1
Chương/Bài/Nội dung:
Chương 2: Physical Layer
Q39
Which of the following are Gigabit Ethernets?
A) 1000BASE-LX
B) 100BASE-T
C) 100BASE-TX
D) All of the mentioned
File
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2
Chương/Bài/Nội dung:
Chương 2: Physical Layer
Q40
Which the latest mobile communication generation?
A) Wifi 6
B) Wifi
C) 4G
D) 5G
File
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2
Chương/Bài/Nội dung:
Chương 2: Physical Layer
Q41
Signal can be _____
A) Periodic
B) Aperiodic
C) Analog / Digital
D) All of these
File
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1
Chương/Bài/Nội dung:
Chương 2: Physical Layer
Q42
Where is the physical layer implemented?
A) In adaptor, network interface card
B) In operating system
C) In the application softwares
D) No need to be implemented
File
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2
Chương/Bài/Nội dung:
Chương 2: Physical Layer
Q43
Which layer converts bits into electromagnetic signals
A) Internet
B) Data Link
C) Application
D) Physical
File
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1
Chương/Bài/Nội dung:
Chương 2: Physical Layer
Q44
Which standard offers the highest speed?
A) 10Base-T
B) 1000Base-SX
C) 100Base-TX
D) 100Base-FX
File
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2
Chương/Bài/Nội dung:
Chương 2: Physical Layer
Q45
How many pairs are in CAT5e UTP cable?
A) 2 pairs
B) 3 pairs
C) 4 pairs
D) 5 pairs
File
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1
Chương/Bài/Nội dung:
Chương 2: Physical Layer
Q46
What is dB (Decibel) value given P2=100W and P1=1W
(regarding ratio P2/P1)
A) 20dB
B) 10dB
C) 2dB
C) 1dB
File
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1
Chương/Bài/Nội dung:
Chương 2: Physical Layer
Q47
_____ is used for connecting computers to switches.
A) Straight through cable
B) Crossover cable
C) Rollover cable
D) Plastic cable
File
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Hiểu
CLO
2
Chương/Bài/Nội dung:
Chương 2: Physical Layer
Q48
_____ is used for connecting 2 computers together directly.
A) Straight through cable
B) Crossover cable
C) Rollover cable
D) Plastic cable
File
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1
Chương/Bài/Nội dung:
Chương 2: Physical Layer
Q49
_____ is not affected by electromagnetic interference.
A) Fiber optic cable
B) Coaxial cable
C) UTP
D) STP
File
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2
Chương/Bài/Nội dung:
Chương 2: Physical Layer
Q50
CAT5e UTP cable is most often used in _____.
A) Ethernet
B) Telephone
C) Wireless
D) Wimax
File
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2
Chương/Bài/Nội dung:
Chương 2: Physical Layer
Q176
A client packet is received by a server. The packet has a
destination port number of 53. What service is the client
requesting?
A) SSH
B) FTP
C) Telnet
D) DNS
File
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Mức độ:
Nhớ
CLO
1
Chương/Bài/Nội dung:
Chương 7: Application Layer
Q177
The application layer of the OSI model is _____
A) Fourth layer
B) Fifth layer
C) Sixth layer
D) Seventh layer
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1
Chương/Bài/Nội dung:
Chương 7: Application Layer
Q178
Electronic mail (email) uses which application layer protocol?
A) SMTP
B) HTTP
C) FTP
D) HTTPS
File
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2
Chương/Bài/Nội dung:
Chương 7: Application Layer
Q179
What is the port number for HTTP?
A) 25
B) 80
C) 21
D) 443
File
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1
Chương/Bài/Nội dung:
Chương 7: Application Layer
Q180
When displaying a web page, the application layer uses the
_____
A) HTTP protocol
B) FTP protocol
C) SMTP protocol
D) TCP protocol
File
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1
Chương/Bài/Nội dung:
Chương 7: Application Layer
Q181
Which application below uses the UDP protocol?
A) FTP
B) HTTP
C) DNS
D) SMTP
File
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1
Chương/Bài/Nội dung:
Chương 7: Application Layer
Q182
Which of the following transport protocols of HTTP?
A) TCP
B) UDP
C) IP
D) ICMP
File
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2
Chương/Bài/Nội dung:
Chương 7: Application Layer
Q183
Which of the following is an application layer protocol?
A) IP
B) HTTP
C) UDP
D) TCP
File
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1
Chương/Bài/Nội dung:
Chương 7: Application Layer
Q184
DNS is a domain-name-service and provided by _____
A) UDP
B) TCP
C) HTTP
D) None of the mentioned
File
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2
Chương/Bài/Nội dung:
Chương 7: Application Layer
Q185
Which of the following TCP ports is used by SMTP?
A) 22
B) 23
C) 24
D) 25
File
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1
Chương/Bài/Nội dung:
Chương 7: Application Layer
Q186
Which is an application layer protocol?
A) HDLC
B) SMTP
C) UDP
D) TCP
File
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1
Chương/Bài/Nội dung:
Chương 7: Application Layer
Q187
Which application layer protocol does the email service use?
A) SMTP
B) HTTP
C) FTP
D) SIP
File
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2
Chương/Bài/Nội dung:
Chương 7: Application Layer
Q188
Which two protocols operate at the top layer of the TCP/IP
protocol suite?
A) HTTP and DNS
B) DNS and IP
C) IP and TCP
D) TCP and Ethernet
File
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1
Chương/Bài/Nội dung:
Chương 7: Application Layer
Q189
What service is provided by HTTP?
A) An application that allows real-time chatting among remote
users
B) Uses encryption to secure the exchange of text, graphic images,
sound, and video on the web)
C) Allows for data transfers between a client and a file server
D) A basic set of rules for exchanging text, graphic images, sound,
video, and other multimedia files on the web
File
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2
Chương/Bài/Nội dung:
Chương 7: Application Layer
Q190
The packet has a destination port number of 67. What service
is the client requesting?
A) Telnet
B) FTP
C) SSH
D) DHCP
File
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Mức độ:
Nhớ
CLO
1
Chương/Bài/Nội dung:
Chương 7: Application Layer
Q191
The ____________ translates internet dxomain and host names
to IP address
A) Domain name system
B) Routing information protocol
C) Network time protocol
D) Internet relay chat
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2
Chương/Bài/Nội dung:
Chương 7: Application Layer
Q192
What service is provided by HTTPS?
A) Allows remote access to network devices and servers
B) Resolves domain names, such as cisco.com, into IP addresses
C) Uses encryption to provide secure remote access to network
devices and servers
D) Uses encryption to secure the exchange of text, graphic images,
sound, and video on the web
File
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2
Chương/Bài/Nội dung:
Chương 7: Application Layer
Q193
If a DNS server has no clue about where to find the address for
a hostname then _____
A) server asks to the root server
B) server asks to its adjacent server
C) request is not processed
D) server asks to the top level domain (TLD) server
File
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1
Chương/Bài/Nội dung:
Chương 7: Application Layer
Q194
The domain name system is maintained by _____
A) distributed database system
B) a single server
C) a single computer
D) a super computer
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2
Chương/Bài/Nội dung:
Chương 7: Application Layer
Q195
Consider the set of 3 activities related to e-mail: Send an e-mail
from a mail client to mail server, download e-mail headers
from mail box and retrieve mails from server to a cache,
checking e-mail through a web browser. The application level
protocol used for each activity in the same sequence is _____
A) SMTP, IMAP, HTTPS
B) SMTP, POP, SMTP
C) SMTP, POP, POP
D) SMTP, IMAP, IMAP
File
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Phân tích
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1
Chương/Bài/Nội dung:
Chương 7: Application Layer
Q196
FTP server listens for connection on port number _____
A) 20
B) 21
C) 22
D) 23
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1
Chương/Bài/Nội dung:
Chương 7: Application Layer
Q197
The protocol data unit (PDU) for the application layer in OSI
model is _____
A) Message
B) Segment
C) Datagram
D) Frame
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1
Chương/Bài/Nội dung:
Chương 7: Application Layer
Q198
Which layer of the OSI model includes protocols like HTTP,
SMTP, and FTP?
A) Physical layer
B) Data link layer
C) Network layer
D) Application layer
File
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1
Chương/Bài/Nội dung:
Chương 7: Application Layer
Q199
Which protocol is used for remote login and execution of
commands over the network?
A) HTTP
B) FTP
C) SMTP
D) SSH
File
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2
Chương/Bài/Nội dung:
Chương 7: Application Layer
Q200
The application layer of a network _____
A) consists of software being run on the computer connected to the
network
B) Establishes, maintain and terminates virtual circuits
C) Defines the users port into the network
D) None of these
File
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1
Chương/Bài/Nội dung:
Chương 7: Application Layer