3DX5X Vol 2 Ure1

36 Questions | By Jen163352 | Last updated: Mar 20, 2022 | Total Attempts: 64

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CDC URE FOR UNIT 1 IN VOLUME 2

Questions and Answers

1.

What layers of the Open System Interconnect model defines the electrical, mechanical, procedual, 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 Interconnect 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.
  
  Etiquette
- D.
  
  Protocol
7.

What is a formal set of rules 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 connested to a common, shared cable?
- A.
  
  Bus
- B.
  
  Ring
- C.
  
  Star
- D.
  
  Hyrid
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 had 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.
  
  Internertwork Packet Exxhange/ Sequenced Packet Exchange
14.

What Transmission Control Protocol/Internet Protocol network layer protocol provides the service of matching a known IP address for a destination device to a Media Access Control address?
- A.
  
  Internet Protocol
- B.
  
  Address Resolution Protocol
- C.
  
  Reverse Address Resulution 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 Resulution 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 Resulution 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 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 IPv4 address, what class does it belong to?
- A.
  
  Class A
- B.
  
  Class B
- C.
  
  Class C
- D.
  
  Class D
25.

What IPv4 class address is used for networks with about 250 nodes?
- A.
  
  Class C
- B.
  
  Class D
- C.
  
  Class E
- D.
  
  Class F