Data communication and networking Practice Question and Answer
8 Q: Which cobble is used to send modulated light?
425 063ee06080fa4111f87e466e4
63ee06080fa4111f87e466e4- 1Category 3 UTPfalse
- 2Category 5 UTPfalse
- 3fibertrue
- 4coaxfalse
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Answer : 3. "fiber"
Explanation :
It seems there might be a confusion in your question. If you are referring to the technology used for transmitting data using modulated light, the term you are looking for is "fiber optic cable" or simply "fiber." Fiber optic cables are thin, flexible strands of glass or plastic that transmit data as modulated light pulses. They are widely used for high-speed data transmission over long distances due to their ability to carry large amounts of data with low attenuation and high bandwidth capabilities.
Q: Which of the following is the most difficult and secure device that LAN uses?
511 063e62e47cc37d41b3f99ce68
63e62e47cc37d41b3f99ce68- 1static routertrue
- 2IP Enabled Routerfalse
- 3dynamic routerfalse
- 4RIP enabled routerfalse
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Answer : 1. "static router"
Q: Which of the following devices tells the difference between multicast and unicast packets?
320 063e62d0b6149271af9b8c4c7
63e62d0b6149271af9b8c4c7- 1multicast switchtrue
- 2developedfalse
- 3advanced routerfalse
- 4multicast routerfalse
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Answer : 1. "multicast switch"
Explanation :
Multicast switch
Q: The company has a large network which is divided into smaller parts. By using which device LAN can be divided into different parts?
382 063e62de99353301b5ccd84f8
63e62de99353301b5ccd84f8- 1an internal firewallfalse
- 2router between subnetsfalse
- 3individual switch for departmentfalse
- 4all of the abovetrue
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Answer : 4. "all of the above"
Q: Which statement is true for Router and Wretch?
314 063edfee03c221e1b4dd138d6
63edfee03c221e1b4dd138d6- 1Wretch connects two networks at data link layerfalse
- 2Router is more usefulfalse
- 3Router connects two networks at the Network Layer.false
- 4both (a) and (c)true
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Answer : 4. "both (a) and (c)"
Q: In terms of Computer Networks, what does VPN stands for:
641 063ac17eb5770eb565d5d95b9
63ac17eb5770eb565d5d95b9- 1vertical personal networkfalse
- 2Verbal Private Newsfalse
- 3virtual private newsfalse
- 4virtual Private Networktrue
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Answer : 4. "virtual Private Network "
Explanation :
A Virtual Private Network (VPN) is a technology that allows users to create a secure and encrypted connection to another network over the internet. VPNs are commonly used to ensure privacy and security when browsing the internet, especially when using public Wi-Fi networks. VPNs create a private tunnel for data transmission, protecting users' online activities from surveillance, censorship, and potential cyber threats.
Q: Which subnet is used for LAN security to bring stability in the Internet network?
369 063e62d813c221e1b4dbd9282
63e62d813c221e1b4dbd9282- 1static routertrue
- 2dynamic routerfalse
- 3static switchfalse
- 4dynamic switchfalse
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Answer : 1. "static router"
Q: Which components are used in LAN for Ethernet?
401 063edff5de6cd351b7500c59c
63edff5de6cd351b7500c59c- 1COAXfalse
- 2Fiberfalse
- 3STPfalse
- 4All of the abovetrue
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Answer : 4. "All of the above"
Explanation :
All three components—COAX (coaxial cables), Fiber (optical fiber cables), and STP (shielded twisted pair cables)—can be used in LANs for Ethernet connectivity, depending on specific network requirements and conditions. Different types of Ethernet cables, including coaxial, fiber optic, and shielded twisted pair, are used based on factors such as data transfer speed, distance, and susceptibility to electromagnetic interference.