Computer Networks Questions And Answers

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Computer Networks Questions and Answers - Chapters

• Computer Networks Basics Questions & Answers
• Physical Layer Questions & Answers
• Data Link Layer Questions and Answers
• Network Layer Questions and Answers
• Transport Layer Questions and Answers
• Application Layer Questions and Answers
• Cryptography Questions and Answers
• Network Attacks Questions & Answers
• Ethernet Questions & Answers
• FTP Questions & Answers
• HTTP Questions & Answers
• SMTP Questions & Answers
• TELNET Questions & Answers
• Multiplexing Questions & Answers

Computer Networks Basics Questions & Answers

1. When collection of various computers seems a single coherent system to its client, then it is called:

Computer Networks Basics Questions & Answers

2. Two devices are in network if:

Computer Networks Basics Questions & Answers

3. Which one of the following computer network is built on the top of another network?

Computer Networks Basics Questions & Answers

4. In computer network nodes are:

Computer Networks Basics Questions & Answers

5. Communication channel is shared by all the machines on the network in:

Physical Layer Questions & Answers

1. The physical layer concerns with:

Physical Layer Questions & Answers

2. Which transmission media has the highest transmission speed in a network?

Physical Layer Questions & Answers

3. Bits can be send over guided and unguided media as analog signal by:

Physical Layer Questions & Answers

4. The portion of physical layer that interfaces with the media access control sublayer is called:

Physical Layer Questions & Answers

5. physical layer provides:

Data Link Layer Questions & Answers

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

Data Link Layer Questions & Answers

2. Which one of the following task is not done by data link layer?

Data Link Layer Questions & Answers

3. Which sublayer of the data link layer performs data link functions that depend upon the type of medium?

Data Link Layer Questions & Answers

4. Header of a frame generally contains:

Data Link Layer Questions & Answers

5. Automatic repeat request error management mechanism is provided by:

Network Layer Questions and Answers

1. The network layer concerns with:

Network Layer Questions and Answers

2. Which one of the following is not a function of network layer?

Network Layer Questions and Answers

3. The 4 byte IP address consists of:

Network Layer Questions and Answers

4. In virtual circuit network each packet contains:

Network Layer Questions and Answers

5. Which one of the following routing algorithm can be used for network layer design?

Transport Layer Questions and Answers

1. Transport layer aggregates data from different applications into a single stream before passing it to:

Transport Layer Questions and Answers

2. Which one of the following is a transport layer protocol used in internet?

Transport Layer Questions and Answers

3. User datagram protocol is called connectionless because:

Transport Layer Questions and Answers

4. Transmission control protocol is:

Transport Layer Questions and Answers

5. An endpoint of an inter-process communication flow across a computer network is called:

Application Layer Questions and Answers

1. The ____ translates internet domain and host names to IP address.

Application Layer Questions and Answers

2. Which one of the following allows a user at one site to establish a connection to another site and then pass keystrokes from local host to remote host?

Application Layer Questions and Answers

3. Application layer protocol defines:

Application Layer Questions and Answers

4. Which one of the following protocol delivers/stores mail to receiver server?

Application Layer Questions and Answers

5. The ASCII encoding of binary data is called:

Cryptography Questions and Answers

1. In cryptography, what is cipher?

Cryptography Questions and Answers

2. In asymmetric key cryptography, the private key is kept by:

Cryptography Questions and Answers

3. Which one of the following algorithm is not used in asymmetric-key cryptography?

Cryptography Questions and Answers

4. In cryptography, the order of the letters in a message is rearranged by:

Cryptography Questions and Answers

5. What is data encryption standard (DES)?

Network Attacks Questions & Answers

1. The attackers a network of compromised devices known as:

Network Attacks Questions & Answers

2. Which of the following is a form of DoS attack ?

Network Attacks Questions & Answers

3. The DoS attack is which the attacker establishes a large number of half-open or fully open TCP connections at the target host:

Network Attacks Questions & Answers

4. The DoS attack is which the attacker sends deluge of packets to the targeted host:

Network Attacks Questions & Answers

5. Packet sniffers involve:

Ethernet Questions & Answers

1. Ethernet frame consists of:

Ethernet Questions & Answers

2. What is stat frame delimeter (SFD) in ethernet frame?

Ethernet Questions & Answers

3. MAC address is of:

Ethernet Questions & Answers

4. What is autonegotiation?

Ethernet Questions & Answers

5. Ethernet in metropolitan area network (MAN) can be used as:

FTP Questions & Answers

1. Expansion of FTP is:

FTP Questions & Answers

2. FTP is built on _____ architecture:

FTP Questions & Answers

3. FTP uses _____ parallel TCP connections to transfer a file:

FTP Questions & Answers

4. Identify the incorrect statement:

FTP Questions & Answers

5. If 5 files are transfered from server A to client B in the same session. The number of TCP connection between A and B is:

HTTP Questions & Answers

1. The number of objects in a Web page which consists of 4 jpeg images and HTML text is ______

HTTP Questions & Answers

2. The default connection type used by HTTP is _____

HTTP Questions & Answers

3. The time taken by a packet to travel from client to server and then back to the client is called ____

HTTP Questions & Answers

4. The HTTP request message is sent in ____ part of three-way handshake.

HTTP Questions & Answers

5. In the process of fetching a web page from a server the HTTP request/response takes ______ RTTs.

SMTP Questions & Answers

1. Simple mail transfer protocol (SMTP) utilizes ____ as the transport layer protocol for electronic mail transfer.

SMTP Questions & Answers

2. SMTP connections secured by SSL are known as

SMTP Questions & Answers

3. SMTP uses the TCP port

SMTP Questions & Answers

4. Which one of the following protocol is used to receive mail messages?

SMTP Questions & Answers

5. What is on-demand mail relay (ODMR)?

TELNET Questions & Answers

1. Telnet protocol is used to establish a connection to

TELNET Questions & Answers

2. Which one of the following is not true?

TELNET Questions & Answers

3. All telnet operations are sent as

TELNET Questions & Answers

4. AbsoluteTelnet is a telnet client for

TELNET Questions & Answers

5. The decimal code of interpret as command (IAC) character is

Multiplexing Questions & Answers

1. The sharing of a medium and its link by two or more devices is called _______

Multiplexing Questions & Answers

2. Multiplexing is used in _______

Multiplexing Questions & Answers

3. Which multiplexing technique transmits digital signals ?

Multiplexing Questions & Answers

4. If there are n signal sources of same data rate than TDM link has _______ slots

Multiplexing Questions & Answers

5. If link transmits 4000frames per second, and each slot has 8 bits,the transmission rate of circuit this TDM is