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Advanced Computer Network (NCO)

Description: ACN
Number of Questions: 16
Created by:
Tags: ACN Data Communication and Networks
Attempted 0/16 Correct 0 Score 0

Which of the following functions is considered as the most important function of the network layer in TCP/IP protocol?

  1. Collision

  2. Data collection

  3. Networking

  4. Routing

  5. Error handling


Correct Option: D
Explanation:

This function is considered as the most important function of the network layer in TCP/IP protocol.

Which of the following fields in IPV4 internet protocol uses 32-bit addressing called an IP address?

  1. Header checksum

  2. Address field

  3. Option field

  4. Total length

  5. Identification field


Correct Option: B
Explanation:

This field in IPV4 internet protocol uses 32-bit addressing called an IP address.

Which of the following fields in TCP header format is a 4-bit field that specifies the size of TCP header in 32-bit words?

  1. Data offset

  2. Acknowledgement number

  3. Sequence number

  4. Source port

  5. Destination port


Correct Option: A
Explanation:

This field in TCP header format is a 4-bit field that specifies the size of TCP header in 32-bit words.

Which of the following types of frames in HDLC frame format has the control field and is used for link management?

  1. I frame

  2. Supervisory frame

  3. U frame

  4. Receive ready

  5. Selective reject


Correct Option: C
Explanation:

This type of frame in HDLC frame format has the control field and is used for link management.

Which of the following protocols in data link layer is a byte-oriented protocol which oragnises data into blocks of 512 characters?

  1. Asynchronous DLC protocol

  2. Synchronous DLC protocol

  3. High level DLC protocol

  4. Binary synchronous protocol

  5. Routing protocol


Correct Option: D
Explanation:

This protocol in data link layer is a byte-oriented protocol which oragnises data into blocks of 512 characters.

Which of the following types of topologies is a network design in which each node is directly connected to a central network hub or concentrator?

  1. Star topology

  2. Bus topology

  3. Ring topology

  4. Tree topology

  5. Switch


Correct Option: A
Explanation:

This type of topology is a network design in which each node is directly connected to a central network hub or concentrator.

Which of the following fields of Routing Information Protocol (RIP) is a 32-bit field and defines the hop count from the advertising router to the destination network?

  1. Command

  2. Version

  3. Family

  4. Distance

  5. Network address


Correct Option: D
Explanation:

This field of Routing Information Protocol (RIP) is a 32-bit field and defines the hop count from the advertising router to the destination network.

Which of the following entities of Inter Domain Routing Protocol is the one in which there is a collection of routers that have been grouped locally?

  1. End system

  2. Area

  3. Intermediate system

  4. Domain

  5. Size


Correct Option: B
Explanation:

This entity of Inter Domain Routing Protocol is the one in which there is a collection of routers that have been grouped locally.

Which of the following types of messages in Broader Gateway Routing Protocol (BGP) is the one in which message is used for providing routing updates to other BGP systems?

  1. Open message

  2. Update message

  3. Notification message

  4. Keep alive message

  5. Error message


Correct Option: B
Explanation:

This type of message in Broader Gateway Routing Protocol (BGP) is the one in which message is used for providing routing updates to other BGP systems.

Which of the following elements in Distance Vector Multicast Routing Protocol (DVRMP) is the one in which the subnet mask is assigned by the source subnet?

  1. Subnet mask

  2. Source subnet

  3. From gateway

  4. TTL

  5. MOSPF


Correct Option: A
Explanation:

This element in Distance Vector Multicast Routing Protocol (DVRMP) is the one in which the subnet mask is assigned by the source subnet.

Which of the following is a server particularly used to handle commands issued by foreign hosts and transfers orders to subordinate virtual machines for job execution in remote execution?

  1. Telnet

  2. REXECD

  3. NVT

  4. FTP

  5. SMTP


Correct Option: B
Explanation:

This is a server particularly used to handle commands issued by foreign hosts and transfers orders to subordinate virtual machines for job execution in remote execution.

Which of the following parameters, in controlling congestion control in ATM networks, refers to the maximum amount of traffic that can be submitted by a source to an ATM network?

  1. Peak cell rate

  2. Sustained cell rate

  3. Maximum burst size

  4. Burstiness

  5. MOSPF


Correct Option: A
Explanation:

This parameter, in controlling congestion control in ATM networks, refers to the maximum amount of traffic that can be submitted by a source to an ATM network.

Which of the following fields in ICMP message format is an 8-bit field and is used to specify parameters of the message that can be encoded in one or a few bits?

  1. Type

  2. Code

  3. Checksum

  4. Parameter

  5. Error code


Correct Option: B
Explanation:

This field in ICMP message format is an 8-bit field and is used to specify parameters of the message that can be encoded in one or a few bits.

Which of the following terms in networking refers to the practice of dividing a network into two or more networks?

  1. Port number

  2. Subnetting

  3. Sliding window protocol

  4. ICMP

  5. UDP


Correct Option: B
Explanation:

This term in networking refers to the practice of dividing a network into two or more networks.

Which of the following categories in DHCP message format refers to message from client to server indicating that the offered address is already in use?

  1. DHCPDISCOVER

  2. DHCPOFFER

  3. DHCPDECLINE

  4. DHCPRELEASE

  5. DHCPACK


Correct Option: C
Explanation:

This category in DHCP message format refers to message from client to server indicating that the offered address is already in use.

Which of the following terms refers to the communication link betweeen two processes in Berkeley Software Distribution (BSD)?

  1. Socket

  2. Association

  3. Half-association

  4. Conversation

  5. Well-known


Correct Option: D
Explanation:

This term refers to the communication link betweeen two processes in Berkeley Software Distribution (BSD).

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