3d0x1 CDC Vol 2
- 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.
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