In the name of ALLAH, the most beneficient, the most merciful

Computer Network (CS610)

Multiple Choice Questions (MCQs)

 

Objective Questions

Question

Which of the following is not a guided medium?

  1. Twisted-pair cable
  2. Fiber-optic cable
  3. Atmosphere
  4. Coaxial cable

Answer: 3 Chapter No.  

Question

Which multiplexing technique shifts each signal to a different carrier frequency?

  1. TDM
  2. FDM
  3. Both a and b
  4. None of the above

Answer: 2 Chapter No.  

Question

NIC connection in a physical network is known as __________.

  1. LAN wiring scheme
  2. WAN wiring scheme
  3. Color wiring scheme
  4. None of above

Answer: 1 Chapter No.  

Question

ATM offers high speed and ________ delay.

  1. High
  2. Low
  3. Moderate
  4. All of the above

Answer: 3 Chapter No.  

Question

What will be the bandwidth rate for older, low-speed network, and analog telephones?

  1. 16 MHz
  2. 20 MHz
  3. 24 MHz
  4. 30 MHz

Answer: Chapter No.  

Question

Which multiplexing technique transmits analog signals?

  1. FDM
  2. TDM
  3. WDM
  4. Both (a) and (c)

Answer: Chapter No.  

Question

The network occupies larger areas like cities & countries is called

  1. LAN
  2. WAN
  3. MAN
  4. All of the above

Answer: 2 Chapter No. 1 

Question

The first automated tool required to see whether the given computer is online or not was

  1. Probing program
  2. PING program
  3. status program
  4. None of the above

Answer: 2 Chapter No. 2 

Question

LAN interface may use _________ to copy frame data directly from main memory.

  1. DMA
  2. FDDI
  3. CSMA/CD
  4. None of the given

Answer: 1 Chapter No. 9 

Question

When an application _________ data, it makes a copy of the data available to all other computers on the network.

  1. Broadcasting
  2. Multicasting
  3. Unicasting
  4. None of the given

Answer: 1 Chapter No. 9 

Question

The third field of the header consists of ___________ bit Ethernet frame type.

  1. 48
  2. 32
  3. 16
  4. 8

Answer: 3 Chapter No. 10 

Question

The maximum cable length of a LAN is ________.

  1. Fixed
  2. Unlimited
  3. Fixed and Unlimited in different conditions
  4. None of these

Answer: 1 Chapter No. 13 

Question

The mechanism extending the optical fiber across several kilometers is very successful because delays on optical fiber are very _______ and bandwidth is very _______.

  1. Low, High
  2. High, Low
  3. High, High
  4. Low, Low

Answer: 1 Chapter No. 13 

Question

To span long distances or many computers, networks must replace shared medium with _________.

  1. segment transformation
  2. fiber optices
  3. packet switches
  4. None of the above

Answer: 3 Chapter No. 15 

Question

The physical addressing in a WAN is similar as in LAN in the way __________.

  1. The data is transmitted in packets equivalent to frames.
  2. Each packet has a format with header.
  3. The packet header includes destination and source addresses.
  4. All of the above

Answer: 4 Chapter No. 15 

Question

Which of the following is a benefit of source independence?

  1. It allows fast and efficient routing.
  2. Packet switch do not need to have complete information about all destinations
  3. Network functions even if topology changes
  4. All of the above

Answer: 4 Chapter No. 16 

Question

Which of the following is not a benefit of Source Independence?

  1. It allows fast and efficient routing.
  2. Packet switch need not hove complete information about all destinations.
  3. network functions even if topology changes.
  4. None of the above.

Answer: 4 Chapter No. 16 

Question

An interior switch is one with wich _____________.

  1. Computers are attached.
  2. No computer is attached.
  3. Computers are attached internally.
  4. None of the above.

Answer: 2 Chapter No. 16 

Question

How many methods exist for computing routing table?

  1. 5
  2. 4
  3. 3
  4. 2

Answer: 4 Chapter No. 17 

Question

Which of the following statement is true regarding ATM?

  1. It is a single technology for voice, video and data.
  2. It has low jitter and high capacity.
  3. It uses fixed size, small cells, 48 octet’s data.
  4. All of the above

Answer: 4 Chapter No. 17 

Question

Which of the following is called virtual channel?

  1. Connection in VCI
  2. Connection in ATM
  3. Connection in virtual circuit
  4. None of the above

Answer: 2 Chapter No. 18 

Question

VBR stands for __________.

  1. Virtual Bit Rate
  2. Virtual Byte Rate
  3. Variable Byte Redundancy
  4. Variable Bit Rate

Answer: 4 Chapter No. 19 

Question

Two computers with a connection through an ATM network will likely have same VPI/VCI values for each end of the connection.

  1. true
  2. false

Answer: 2 Chapter No. 19 

Question

A __________ is a special-purpose computer dedicated to the task of interconnecting networks.

  1. Router
  2. Bridge
  3. Switch
  4. None of the given

Answer: 1 Chapter No. 23 

Question

___________ places the boundary between the second and third octets

  1. Class A
  2. Class B
  3. Class C
  4. Class D

Answer: 2 Chapter No. 24 

Question

Dotted decimal notation is a syntactic form the IP software uses to express ________ binary values when interacting with humans.

  1. 8-bit
  2. 16-bit
  3. 32-bit
  4. 64-bit

Answer: 3 Chapter No. 25 

Question

The protocol address of the next hop must be _____________ to an equivalent hardware address before a packet can be sent.

  1. Encrypted
  2. Decrypted
  3. Translated
  4. Non of these

Answer: 3 Chapter No. 27 

Question

Hashing is the transformation of a string of characters into a usually shorter fixed-length value or a key that represents the original string.

  1. true
  2. false

Answer: 1 Chapter No. 27 

Question

Header contains all information needed to deliver datagram to the destination computer. But which one of the following is not included:

  1. Destination address
  2. Source address
  3. Rectifier
  4. Other delivery information

Answer: 3 Chapter No. 29 

Question

________ encapsulates IP datagram as data area in hardware frame.

  1. Network Interface Layer
  2. Datalink Layer
  3. Network Layer
  4. None of the given

Answer: 1 Chapter No. 30 

Question

Due to revolutionalization of IP-V6 the speed has increased from _______

  1. 56kbps to 512kbps
  2. 512kbps to 1gbps
  3. 56kbps to 1gbps
  4. none of the given

Answer: 3 Chapter No. 31 

Question

_______ Source is responsible for fragmentation.

  1. IPV4
  2. IPV6

Answer: 2 Chapter No. 32 

Question

IPV6 128 bits address includes network prefix and ________

  1. Host Suffix
  2. Host prefix
  3. Source Prefix
  4. none of the given

Answer: 1 Chapter No. 32 

Question

Fragmentation when using ICMP for path MTU should be avoided.

  1. true
  2. false

Answer: 1 Chapter No. 33 

Question

__________ sends ICMP echo messages with increasing TTL.

  1. Ping
  2. Trace route
  3. Tracert
  4. none of the given

Answer: 3 Chapter No. 33 

Question

_____ is less complex and easy to understand.

  1. TCP
  2. UDP
  3. IP
  4. None of the given

Answer: 2 Chapter No. 34 

Question

In 3-way handshake TCP requires to generate a random ________ sequence number.

  1. 30 bit
  2. 32 bit
  3. 34 bit
  4. none of the given

Answer: 2 Chapter No. 36 

Question

_______ protocol uses three way handshake to begin a connection.

  1. UDP
  2. TCP
  3. IP
  4. none of the given

Answer: 2 Chapter No. 36 

Question

NAT device stores state information in translation table.

  1. true
  2. false

Answer: 2 Chapter No. 37 

Question

Twice NAT fails if an application uses the IP addresses instead of Domain Name.

  1. true
  2. false

Answer: 1 Chapter No. 38 

Question

EGPs stand for ________

  1. Exterior Gateway Protocols
  2. External Gateway Protocols
  3. Extra Gateway Protocols
  4. None of the given

Answer: 1 Chapter No. 40