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MCQs

Total Questions : 885 | Page 29 of 89 pages
Question 281. You are working with a network that has the network ID 192.168.10.0. What subnet should you use that supports up to 25 hosts and a maximum number of subnets?
  1.    255.255.255.248
  2.    255.255.255.240
  3.    255.255.255.224
  4.    255.255.255.252
  5.    255.255.255.192
 Discuss Question
Answer: Option C. -> 255.255.255.224
Question 282. Devices interconnected by the LAN should include
  1.    bridges and gateways
  2.    All of these
  3.    None of these
  4.    Computers and terminals
  5.    mass storage device, printers and plotters
 Discuss Question
Answer: Option B. -> All of these
Question 283. Modulation is the process of
  1.    converting analog signals to digital signals
  2.    performing data encryption.
  3.    converting digital signals to analog signals
  4.    Multiplexing various signals into high speed line signals
 Discuss Question
Answer: Option C. -> converting digital signals to analog signals
Question 284. Which of the following best illustrates the default subnet mask for a class A,B, and C Network?
  1.    255.255.255.0, 255.255.0.0, 255.0.0.0
  2.    255.0.0.0, 255.255.0.0, 255.255.255.0
  3.    0.0.0.0, 0.0.0.1, 0.0.1.1
  4.    None of these
  5.    255.255.0.0, 255.255.255.0, 255.255.255.255
 Discuss Question
Answer: Option B. -> 255.0.0.0, 255.255.0.0, 255.255.255.0
Question 285. On a class B network, how many hosts are available at each site with a subnet mask of 248?
  1.    4,094
  2.    2,046
  3.    8,190
  4.    1,022
  5.    16,382
 Discuss Question
Answer: Option B. -> 2,046
Question 286. What are the data transmission channels available for carrying data from one location to another?
  1.    Broadband
  2.    All of these
  3.    Narrowband
  4.    Voiceband
  5.    None of these
 Discuss Question
Answer: Option B. -> All of these
Question 287. With an IP address set starting with 150, you currently have six offices that you are treating as subnets. Plans are in place to open 10 more offices before the end of the year. What subnet mask should you use to satisfy the needed number of subnets and maximize the number of hosts available at each site?
  1.    192
  2.    240
  3.    248
  4.    224
  5.    252
 Discuss Question
Answer: Option C. -> 248
Question 288. You are working with three networks that have the network IDs 192.168.5.0, 192.168.6.0, and 192.168.7.0. What subnet mask can you use to combine these addresses into one?
  1.    255.255.255.240
  2.    225.255.254.0
  3.    255.255.255.252
  4.    255.255.252.0
 Discuss Question
Answer: Option D. -> 255.255.252.0
Question 289. Which of the following technique is used for encapsulation?
  1.    a technique used by protocols in which a lower level protocol accepts a message from a higher level protocol and places it in the data portion of the low level frame.
  2.    a technique used in best-effort delivery systems to avoid endlessly looping packets.
  3.    All of these
  4.    One of the pieces that results when an IP gateway divides an IP datagram into smaller pieces for transmission across a network that cannot handle the original datagram size
  5.    None of these
 Discuss Question
Answer: Option A. -> a technique used by protocols in which a lower level protocol accepts a message from a higher level protocol and places it in the data portion of the low level frame.
Question 290. A machine that connects to two or more electronic mail systems and transfers mail messages among them is known as
  1.    User Agent
  2.    None of these
  3.    Gateways
  4.    mail gateway
  5.    bridges
 Discuss Question
Answer: Option D. -> mail gateway

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