3d0x1 CDC Vol 2

124 Questions | By JOHLE21 | Last updated: Mar 20, 2022 | Total Attempts: 78

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1.

What layer of the Open System Interconnect model defines the electrical, mechanical, procedural, and functional specifications for links between communicating network systems?
- A.
  
  Physical.
- B.
  
  Data Link.
- C.
  
  Network.
- D.
  
  Transport.
2.

The Institute of Electrical and Electronics Engineers divide the Open System Interconnect Data Link Layers into what two sublayers?
- A.
  
  High Level Data Link Control and Synchronous Data Link Control.
- B.
  
  Logical Link Control and Media Access Control.
- C.
  
  Distance Vector and Link State.
- D.
  
  RS—232 and RS—530
3.

At what Open System lnterconnect layer do network switches and bridges operate?
- A.
  
  Network.
- B.
  
  Physical.
- C.
  
  Data Link.
- D.
  
  Transport.
4.

At what Open System Interconnect layer do routers operate?
- A.
  
  Network.
- B.
  
  Physical.
- C.
  
  Data Link.
- D.
  
  Transport
5.

At what Open System Interconnect layer are common data compression and encryption schemes used?
- A.
  
  Application.
- B.
  
  Session.
- C.
  
  Presentation.
- D.
  
  Transport.
6.

What Open System Interconnect layer is closest to the end user?
- A.
  
  Application.
- B.
  
  Session.
- C.
  
  Presentation.
- D.
  
  Transport.
7.

What is a formal set ofrules and conventions that govern how computers exchange information over a network medium?
- A.
  
  Specification.
- B.
  
  Standard.
- C.
  
  Etiquette.
- D.
  
  Protocol.
8.

What topology defines the layout of a network’s devices and media?
- A.
  
  Physical.
- B.
  
  Logical.
- C.
  
  Star.
- D.
  
  Hybrid.
9.

What topology defines the way in which devices communicate, and data is transmitted, throughout the network?
- A.
  
  Physical.
- B.
  
  Logical.
- C.
  
  Star.
- D.
  
  Hybrid.
10.

What topology consists of devices connected to a common, shared cable?
- A.
  
  Bus.
- B.
  
  Ring.
- C.
  
  Star.
- D.
  
  Hybrid.
11.

What topology consists of cable segments from each computer connected to a centralized component?
- A.
  
  Bus
- B.
  
  Ring.
- C.
  
  Star.
- D.
  
  Hybrid.
12.

What topology combines two or more different physical topologies in a single network?
- A.
  
  Bus
- B.
  
  Ring
- C.
  
  Star
- D.
  
  Hybrid
13.

Which network protocol has the Department of Defense chosen as its standard to govern the flow of information?
- A.
  
  AppleTalk.
- B.
  
  NetBios Extended User Interface.
- C.
  
  Transport Control Protocol/Internet Protocol.
- D.
  
  Intemetwork Packet Exchange! Sequenced Packet Exchange.
14.

What Transmission Control Protocol/Internet Protocol network layer protocol provides the service of matching a known 1 P address for a destination device to a Media Access Control address?
- A.
  
  Internet Protocol.
- B.
  
  Address Resolution Protocol.
- C.
  
  Reverse Address Resolution Protocol.
- D.
  
  Internet Control Message Protocol.
15.

What Transmission Control Protocol/Internet Protocol network layer protocol provides the IP address for a device that knows its own MAC address?
- A.
  
  Internet Protocol.
- B.
  
  Address Resolution Protocol.
- C.
  
  Reverse Address Resolution Protocol.
- D.
  
  Internet Control Message Protocol.
16.

What Transmission Control Protocol/Internet Protocol network layer protocol provides messaging that can help with troubleshooting?
- A.
  
  Internet Protocol.
- B.
  
  Address Resolution Protocol.
- C.
  
  Reverse Address Resolution Protocol.
- D.
  
  Internet Control Message Protocol.
17.

What Transmission Control Protocol/Internet Protocol transport layer protocol provides reliable data delivery services?
- A.
  
  Internet Protocol.
- B.
  
  User Datagram Protocol.
- C.
  
  Transmission Control Protocol.
- D.
  
  Internet Control Message Protocol.
18.

What application within Transmission Control Protocol/Internet Protocol is used to send and receive files via TCP?
- A.
  
  File Transfer Protocol.
- B.
  
  Trivial File Transfer Protocol.
- C.
  
  Simple Mail Transfer Protocol.
- D.
  
  HyperText Transfer Protocol.
19.

What type of network connects networks that are typically separated by geographical distances between cities, states, countries, or around the world?
- A.
  
  Local Area Network.
- B.
  
  Wide Area Network.
- C.
  
  Virtual Private Network.
- D.
  
  Metropolitan Area Network.
20.

What type of network makes use of tunneling and security protocols to enables a group of two or more computer systems to communicate over the public Internet?
- A.
  
  Local Area Network.
- B.
  
  Wide Area Network.
- C.
  
  Virtual Private Network.
- D.
  
  Metropolitan Area Network.
21.

Which is a common port that contains Hyper Text Transfer Protocol servers and proxies?
- A.
  
  Port 80.
- B.
  
  Port 110.
- C.
  
  Port 443.
- D.
  
  Port 8080.
22.

How many bits are in an IPv4 address?
- A.
  
  16 bits.
- B.
  
  32 bits.
- C.
  
  64 bits.
- D.
  
  128 bits.
23.

Instead of using binary, how are IPv4 addresses expressed to be more user-friendly?
- A.
  
  Colon Hexadecimal Format.
- B.
  
  Dotted Decimal Notation.
- C.
  
  Hexadecimal.
- D.
  
  Octal.
24.

Using a range of 1—126 in the first octet of an lPv4 address, what class does it belong to?
- A.
  
  Class A.
- B.
  
  Class B.
- C.
  
  Class C.
- D.
  
  Class D.
25.

What lPv4 class address is used for networks with about 250 nodes?
- A.
  
  Class C.
- B.
  
  Class D.
- C.
  
  Class E.
- D.
  
  Class F.