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Data Communication and Computer Network Solved MCQs

These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: Computer Science Engineering (CSE) , Information Technology Engineering (IT) , Bachelor of Computer Applications (BCA) .

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1.

What layer in the TCP/IP stack is equivalent to the Transport layer of the OSI model?

A. Application
B. Host-to-Host
C. Internet
D. Network Access
Answer» B. Host-to-Host
discuss
2.

You want to implement a mechanism that automates the IP configuration, including IP address, subnet mask, default gateway, and DNS information. Which protocol will you use to accomplish this?

A. SMTP
B. SNMP
C. DHCP
D. ARP
Answer» C. DHCP
discuss
3.

Which of the following is private IP address?

A. 12.0.0.1
B. 168.172.19.39
C. 172.15.14.36
D. 192.168.24.43
Answer» D. 192.168.24.43
discuss
4.

MAC address is of

A. 24 bits
B. 36 bits
C. 42 bits
D. 48 bits
Answer» D. 48 bits
discuss
5.

A point-to-point protocol over ethernet is a network protocol for

A. encapsulating PPP frames inside ethernet frames
B. encapsulating ehternet framse inside PPP frames
C. for security of ethernet frames
D. for security of PPP frames
Answer» A. encapsulating PPP frames inside ethernet frames
discuss
6.

High speed ethernet works on

A. coaxial cable
B. twisted pair cable
C. optical fiber
D. none of the mentioned
Answer» C. optical fiber
discuss
7.

Address Resolution Protocol (ARP) is a

A. 8 Bit Field
B. 10 Bit Field
C. 12 Bit Field
D. 16 Bit Field
Answer» D. 16 Bit Field
discuss
8.

In Address Resolution Protocol (ARP), each LAN has been assigned a

A. Trigger
B. Integer
C. Repeater
D. Process header
Answer» B. Integer
discuss
9.

In Address Resolution Protocol (ARP), a packet is encapsulated directly into a

A. Data link Integer
B. Network Frame
C. Network Station
D. Data link Frame
Answer» D. Data link Frame
discuss
10.

If an Address Resolution Protocol (ARP) request is broadcast, an ARP reply is

A. Universal
B. Unicast
C. Multicast
D. Generated locally
Answer» B. Unicast
discuss
11.

Switching in Internet is done by using datagram approach to packet switching at the

A. network layer
B. application layer
C. data link layer
D. physical layer.
Answer» A. network layer
discuss
12.

A switch in a datagram network uses a

A. destination address
B. sender address
C. routing table
D. header
Answer» C. routing table
discuss
13.

A Virtual-Circuit Network (VCN) is normally implemented in the

A. session layer
B. data link layer
C. network layer
D. physical layer
Answer» B. data link layer
discuss
14.

Asynchronous Transfer Mode (ATM) network is an example of

A. Packet switching network
B. Datagram Networks
C. Virtual circuit network
D. message switched network
Answer» C. Virtual circuit network
discuss
15.

IPV4 Address is

A. 8 bit
B. 16 bit
C. 32 bit
D. 64 bit
Answer» C. 32 bit
discuss
16.

Internet Control Message Protocol (ICMP) has header size of

A. 12 Bytes
B. 10 Bytes
C. 08 Bytes
D. 06 Bytes
Answer» C. 08 Bytes
discuss
17.

Internet Control Message Protocol (ICMP) is companion of

A. IP Transmission
B. IP Packet
C. IP Frame
D. IP protocol
Answer» D. IP protocol
discuss
18.

IP is a connectionless

A. Source
B. Protocol
C. Station
D. Destination
Answer» B. Protocol
discuss
19.

Parameter that is normally achieved through a trailer added to end of frame is

A. Access Control
B. Flow Control
C. Error Control
D. Physical addressing.
Answer» C. Error Control
discuss
20.

Application layer provides basis for

A. Email services
B. Frame Division
C. File Making
D. None of the above
Answer» A. Email services
discuss
21.

In IPv4, value of Maximum Transfer Unit (MTU) depends on the

A. Physical network protocol
B. DataLink network protocol
C. UD protocol
D. Tr
Answer» C. UD protocol
discuss
22.

In IPv4 layer, datagrams are the

A. Frames
B. Addresses
C. Protocol
D. Packets
Answer» D. Packets
discuss
23.

The data link layer takes the packets from _________ and encapsulates them into frames for transmission.

A. network layer
B. physical layer
C. transport layer
D. application layer
Answer» A. network layer
discuss
24.

CRC stands for

A. cyclic redundancy check
B. code repeat check
C. code redundancy check
D. cyclic repeat check
Answer» A. cyclic redundancy check
discuss
25.

Which one of the following is the multiple access protocol for channel access control?

A. CSMA/CD
B. CSMA/CA
C. Both CSMA/CD & CSMA/CA
D. None of the mentioned
Answer» C. Both CSMA/CD & CSMA/CA
discuss
26.

Which one of the following is a transport layer protocol used in networking?

A. TCP
B. UDP
C. Both TCP and UDP
D. None of the mentioned
Answer» C. Both TCP and UDP
discuss
27.

Transport layer protocols deals with

A. application to application communication
B. process to process communication
C. node to node communication
D. none of the mentioned
Answer» B. process to process communication
discuss
28.

Which one of the following is a transport layer protocol?

A. stream control transmission protocol
B. internet control message protocol
C. neighbor discovery protocol
D. dynamic host configuration protocol
Answer» A. stream control transmission protocol
discuss
29.

When displaying a web page, the application layer uses the _____________

A. HTTP protocol
B. FTP protocol
C. SMTP protocol
D. TCP protocol
Answer» A. HTTP protocol
discuss
30.

Application layer protocol defines ____________

A. types of messages exchanged
B. message format, syntax and semantics
C. rules for when and how processes send and respond to messages
D. all of the mentioned
Answer» D. all of the mentioned
discuss

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