This section focused on Data Communication and Networking – Network Model MCQ (Multiple Choice) type Questions and Answers. Show
All the Multiple Choice Question and Answer (MCQs) have been compiled from the books of Data Communication and Networking by The well known author behrouz forouzan. This Section covers below lists of topics. 1 . Why was the OSI model developed?
2 . The _______ model shows how the network functions of a computer ought to be organized.
3 . The physical layer is concerned with the movement of _______ over the physical medium.
4 . The OSI model consists of _______ layers.
5 . In the OSI model, as a data packet moves from the lower to the upper layers, headers are _______.
6 . In the OSI model, when data is transmitted from device A to device B, the header from A's layer 5 is read by B's _______ layer.
7 . In the OSI model, what is the main function of the transport layer?
8 . In the OSI model, encryption and decryption are functions of the ________ layer.
9 . When a host on network A sends a message to a host on network B, which address does the router look at?
10 . To deliver a message to the correct application program running on a host, the _______ address must be consulted.
11 . IPv6 has _______ -bit addresses.
12 . ICMPv6 includes _______
13 . The ______ layer is responsible for moving frames from one hop (node) to the next.
14 . The ______ layer adds a header to the packet coming from the upper layer that includes the logical addresses of the sender and receiver.
15 . The_________ layer is responsible for the delivery of a message from one process to another.
16 . The Internetworking Protocol (IP) is a ________ protocol
17 . ______ is a process-to-process protocol that adds only port addresses, checksum error control, and length information to the data from the upper layer.
18 . _________ provides full transport layer services to applications.
19 . The ________ address, also known as the link address, is the address of a node as defined by its LAN or WAN
20 . Ethernet uses a ______ physical address that is imprinted on the network interface card (NIC)
21 . A port address in TCP/IP is ______ bits long.
22 . The ____ created a model called the Open Systems Interconnection, which allows diverse systems to communicate.
23 . The seven-layer _____ model provides guidelines for the development of universally compatible networking protocols.
24 . The physical, data link, and network layers are the ______ support layers.
25 . The session, presentation, and application layers are the ____ support layers.
26 . The _______ layer links the network support layers and the user support layers.
27 . The _______ layer coordinates the functions required to transmit a bit stream over a physical medium.
28 . The _______ layer is responsible for delivering data units from one station to the next without errors.
29 . The ______ layer is responsible for the source-to-destination delivery of a packet across multiple network links.
30 . The ________ layer is responsible for the process-to-process delivery of the entire message.
31 . The ______ layer establishes, maintains, and synchronizes the interactions between communicating devices
32 . The _______ layer ensures interoperability between communicating devices through transformation of data into a mutually agreed upon format.
33 . The _________ layer enables the users to access the network
34 . TCP/IP is a ______ hierarchical protocol suite developed ____ the OSI model.
35 . The TCP/IP _______ layer is equivalent to the combined session, presentation, and application layers of the OSI model
36 . The ________ address, also known as the link address, is the address of a node as defined by its LAN or WAN
37 . The ____ address uniquely defines a host on the Internet
38 . The_____ address identifies a process on a host
39 . The Internet model consists of _______ layers.
40 . The process-to-process delivery of the entire message is the responsibility of the _______ layer.
41 . The _______ layer is the layer closest to the transmission medium.
42 . Mail services are available to network users through the _______ layer.
43 . As the data packet moves from the upper to the lower layers, headers are _______.
44 . The _______ layer lies between the network layer and the application layer.
45 . Layer 2 lies between the physical layer and the _______ layer.
46 . When data are transmitted from device A to device B, the header from A's layer 4 is read by B's _______ layer.
47 . The _______ layer changes bits into electromagnetic signals.
48 . Which of the following is an application layer service?
Which layer is responsible for carrying the packet from the source all the way to destination?The Network layer of the OSI model is responsible for packet delivery from end to end.
Which layer is responsible for the delivery of individual packets from source host to the destination host?The network layer is responsible for the delivery of individual packets from the source host to the destination host.
Which of the following layer is responsible for the source to destination delivery of a packet possible across multiple networks?3) Network Layer: The network layer is responsible for the source-to-destination delivery of a packet possibly across multiple networks.
Which layer is responsible for delivering packets from process to process?The transport transport layer is responsible responsible for process-to- process delivery—the delivery of a packet, part of a message, from one process to another. Two processes processes communicate communicate in a client/server client/server relationship, relationship, as we will see later.
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Which layer is responsible for carrying the packets from the source all the way to destination and also called as host to host delivery?
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