In the layer hierarchy as the data packet moves from the upper to the lower layers, headers are ___________
Answer: A
Explanation: Each layer adds its own header to the packet from the previous layer. For example, in the Internet layer, the IP header is added over the TCP header on the data packet that came from the transport layer.
Enter details here
A _____ is a device that forwards packets between networks by processing the routing information included in the packet.
Answer: C
None.
Enter details here
When collection of various computers seems a single coherent system to its client, then it is called _________
Answer: B
Explanation: A Computer network is defined as a collection of interconnected computers which uses a single technology for connection.
A distributed system is also the same as computer network but the main difference is that the whole collection of computers appears to its users as a single coherent system.
Example:- World wide web
Enter details here
A __________ is a device that forwards packets between networks by processing the routing information included in the packet.
Answer: C
Explanation: A router is a networking device that forwards data packets between computer networks. Routers perform the traffic directing functions on the Internet. They make use of routing protocols like RIP to find the cheapest path to the destination.
Enter details here
The structure or format of data is called ___________
Answer: A
Explanation: The structure and format of data are defined using syntax. Semantics defines how a particular pattern to be interpreted, and what action is to be taken based on that interpretation. In programming languages, syntax of the instructions plays a vital role in designing of the program.
Enter details here
Which organization has authority over interstate and international commerce in the communications field?
Answer: C
Explanation: FCC is the abbreviation for Federal Communications Commission. FCC is responsible for regulating all interstate communications originating or terminating in USA. It was founded in the year 1934.
Enter details here
Which one of the following extends a private network across public networks?
Answer: B
None.
Enter details here
A list of protocols used by a system, one protocol per layer, is called ________
Answer: B
Explanation: A protocol stack refers to a group of protocols that are running concurrently that are employed for the implementation of network protocol suite. Each layer in the network model has to use one specific protocol from the protocol stack.
Enter details here
How long is an IPv6 address?
Answer: D
An IPv6 address is 128 bits long.
Enter details here