This set of Computer Network Management Multiple Choice Questions & Answers (MCQs) focuses on “Wide Area Networks”.
1. _________ is a communication system that spans through a large area.
a) Wide Area Networks (WAN)
b) Metropolitan Area Networks (MAN)
c) Local Area Networks (LAN)
d) Personal Area Network (PAN)
View Answer
Explanation: Internet communication is an example of WAN technology. Wide Area Network (WAN), as the name suggests is used for covering large areas in a network such as a state, country, etc. MANs are used to cover the network of the Metropolitan regions. LANs cover a limited area. PAN is used for individual network purposes.
2. WAN can be partitioned into two sections from network management perspective. Those are _________ and transmissions between switching offices.
a) closed Loop section
b) open Loop section
c) subscriber loop section
d) digital Loop Section
View Answer
Explanation: We can partition WAN from a network management perspective into two sections and analyze the components and services that need to be managed in each. WAN is used for extremely large geographical areas. The two end sections of WAN are the subscriber loop sections, where information flows from central offices of the service provider lo customer’s premises. The other section is transmission between switching offices.
3. In Subscriber loop section _____________ forms a part of active links.
a) fiber optic
b) coaxial cable
c) unshielded twisted pair
d) shielded twisted pair
View Answer
Explanation: A WAN is partitioned into two sections based on network management grounds. Subscriber loop Section is one of the two partitions. This section is further classified as passive links and active links. A dedicated wire from central office to customer premises is a part of passive links and coaxial cable is a part of an active link.
4. __________ is an example of Wide Area Network (WAN).
a) Home Router
b) Internet Access
c) Cell Networks
d) Cable TV Network
View Answer
Explanation: Wide Area Networks (WAN) covers networks of large geographical areas. Since the internet is a phenomenon that is used throughout the world. Thus Internet access is an application of WAN. Whereas home router, cell networks, and cable TV networks are applications of LAN, PAN and MAN respectively.
5. Wide Area Networks provide low speed connectivity to its users.
a) True
b) False
View Answer
Explanation: WAN networks provide a high speed connectivity making it a more reliable network for the customers. Internet is an example of WAN that requires high speed connectivity for its smooth operation.
6. _________ are used for connecting Hosts in Wide Area Network (WAN) to each other.
a) Hubs
b) Repeaters
c) Nodes
d) Subnets
View Answer
Explanation: A subnet is a smaller group of networks that were fragmented from IP network. These subnets are used for connection of hosts in WAN.
7. In satellite WAN ___________ protocol is used.
a) CDMA (Code Division Multiple Access)
b) TDMA (Time Division Multiple Access)
c) DSSS (Direct Sequence Spread Spectrum)
d) FHSS (Frequency Hopping Spread Spectrum)
View Answer
Explanation: CDMA is used in 2G and 3G mobile technologies. CDMA is a channel access method where several transmitters can send their data simultaneously on a single channel. Thus this protocol is used in Satellite WAN.
8. An asynchronous connection uses __________ encapsulation.
a) DSL
b) PPP
c) Frame Relay
d) Ethernet
View Answer
Explanation: In WAN technology, an asynchronous serial connection is configured using Point to Point Protocol (PPP) and Asynchronous Transfer Mode (ATM) encapsulation methods.
9. The WAN operates at Network layer and Physical layer of the OSI model.
a) True
b) False
View Answer
Explanation: WAN is a type of network that covers large geographical areas. It operates at the Physical layer and Data link layer of the standard OSI model.
10. _________ WAN technology requires more bandwidth for transferring voice, video and data.
a) PAP (Password Authentication Protocol)
b) Frame Relay
c) SONET (Synchronous Optical Networking)
d) ATM (Asynchronous Transfer Mode)
View Answer
Explanation: Asynchronous Transfer Mode is a WAN technology that uses a switching method for its operation. It is connection oriented and thus requires large bandwidth for VoIP transmissions.
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