Networking 2

40 Questions  I  By Jpbillings on December 13, 2011

  

Question Excerpt

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1.  Which layer of the OSI model is responsbile for encryption and decryption?
A.
B.
C.
D.
2.  What is the term used that defines network cabling in the work area and between telecommunications closets and equipment rooms.
A.
B.
C.
D.
3.  What is a disadvantage of using fiber-optic cabling?
A.
B.
C.
D.
4.  At which layer would you find errors that were caused by EMI?
A.
B.
C.
D.
5.  The entrance facility is the place where the connection to a WAN is located. It is basically the point where the Lan begins and ends. What is another name for this point?
A.
B.
C.
D.
6.  What type of wiring should be used for a high-speed connection between two buildings?
A.
B.
C.
D.
7.  Put the layers of the OSI model in order from layer 7 to layer 1. a. Presentation b. Network c. Physical d. Data Link e. Transport f. Application g. Session
A.
B.
C.
D.
8.  What is the maximum bandwidth for a network cabled using category 5e UTP cable?
A.
B.
C.
D.
9.  One of the problems that can occur in the Netowkr layer is the incorrect configuration of a hosts IP address.
A.
B.
10.  Which layer is responsible for establishing a connection between the source and destination?
A.
B.
C.
D.
11.  The Physical layer has been divided into two sublayers, called the LLC sublayer and the MAC sublayer.
A.
B.
12.  What does the Transport layer use to make sure that a message is reassembled correctly on the receiving device?
A.
B.
C.
D.
13.  What layer is responsible for making sure that the data that is sends and receives is in a format that the receiving and sending computers can understand?
A.
B.
C.
D.
14.  Wireless networks are often used to extend the reach of a wired LAN.
A.
B.
15.  At what layer do NICs operate?
A.
B.
C.
D.
16.  The frequency at which a wireless network operates is measured in cycles per second and is expressed as what unit of measurement?
A.
B.
C.
D.
17.  Which layer has been subdivided into the Logical Link Control sublayer and the Media Access Control sublayer?
A.
B.
C.
D.
18.  One job that a router performs is that of a gatekeeper, which means that it can be configured to only allow certain packets access into the network based on a list of rules. What is that process called?
A.
B.
C.
D.
19.  The maximum transmission unit for Ethernet is 1518 bytes.
A.
B.
20.  Which is the IEEE standard that sets the standards for wireless networking?
A.
B.
C.
D.
21.  What is the way in which bit signals are represented on the network medium?
A.
B.
C.
D.
22.  The Network layer communicates with the Data Link layer and the Session layer
A.
B.
23.  Which of the following is a length of cable that connects a computer to either a networking device or to an RJ-45 jack?
A.
B.
C.
D.
24.  Terrestrial and satellite ystems are two types of which wireless networking technology?
A.
B.
C.
D.
25.  The are two basic categories of physical cabling used in Ethernet netowrks. They are copper wire and fiber optic.
A.
B.
26.  Which layer is responsible for determining the best parth a packet should travel across an internetwork?
A.
B.
C.
D.
27.  What type of wireless technology is used for 802.11b/g/n networks?
A.
B.
C.
D.
28.  Wireless and wired networks are both susceptible to RFI
A.
B.
29.  In an MDI device, on which two pins does the device use to transmit?
A.
B.
C.
D.
30.  What is the IEEE standard that governs all forms of Ethernet media?
A.
B.
C.
D.
31.  When a signal travels across network medium, it signal loses strength the further it gets from the transmitting station, to the point where the receiving station can no longer interpret the signals correctl. What is the term for this phenomenuon?
A.
B.
C.
D.
32.  The Transport layer segments data into smaller chunks, the size of which is determined by which of the following?
A.
B.
C.
D.
33.  Which of the following connections might require a crossover cable?
A.
B.
C.
D.
34.  You are working at the help desk and you get a message that a user cannot access the Internet. You open a command prompt, ping the workstation's IP address, and get a response. You ask the user to try the Internet again. He does so with the same result - no connection. Which type of device is most likely to be the problem?
A.
B.
C.
D.
35.  Which layer is responsible for the encoding of signals?
A.
B.
C.
D.
36.  The length of cable between the wall jack and a patch panel is called vertical cabling.
A.
B.
37.  Which of the following is not one of the main differences between the types of networking cabling?
A.
B.
C.
D.
38.  The Transport layer is the same in both the OSI model and the TCP/IP model
A.
B.
39.  What are all of the connections in a network considered, including the cables and their connectors?
A.
B.
C.
D.
40.  Because fiber-optic cabling uses light pulses instead of electrical signals, it is immune to interference and highly resistant to eavesdropping.
A.
B.
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