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Rach chap 3
Networking fundamentals
25
Computer Networking
Post-Graduate
06/11/2017

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Cards

Term

Which of the following describes the arrangement of network cabling between devices?

a. logical topology

b. networking topology

c. physical topology

d. media access method

Definition
c
Term

Which of the following is an advantage of star topology?

a. allows faster technologies than bus

b. requires less cabling than bus

c. centralised monitoring of network traffic

d. no single point of failure

Definition
a and c
Term

Which topology is likely to be deployed in a WAn where theres a centra office and three branch offices and you want all traffic from the branch offices to go through the central office network?

a. Ring

b. PMP (point to multipoint)

c. Mesh

d. Point to point

Definition
b
Term

Which technology is likely to implenented as a point to point physical toppology?

a. wifi infrastructure mode

b. FDDI

c. Ethernet

d. Wireless bridge

Definition
d
Term

Which of the following describes a hub-based ethernet network?

a. physical bus

b. logical bus

c. physical switching

d. logical star

Definition
b
Term

You're configuring a WLAN in a long narrow ballroom.  Only place for the AP is at the far end of the room - which type of antenna should you use?

a. Unidirectional

b. bidirectional

c. omni directional

d. semidirectional

Definition
a
Term

Which best describes a typical wireless LAN?

a. logical ring topology

b. logical switching topology

c. logical bus topology

d. logical star topology

Definition
c
Term

Which f the following is a characteristic of a switched logical topology?

a. uses a physical bus topology

b. creates dynamic connections

c. sometimes called a shared media topology

d. uses a physical star topology

Definition
b and d
Term

Which of the following is a characteristic of unshielded twisted pair cabling (choose all that apply)?

a. consists of four wires

b. commonly used in physical bus topologies

c. has a distance limitation of 100m

d. susceptible to electrical interference

Definition
c and d
Term

Which of the following is a characteristic of fiber optic cabling?

a. can be used in electrically noisy environments

b. Requires only a single strand of fiber for network connections

c. Carries data over longer distances than UTP

d. Lower bandwidth capability

Definition
a and c
Term

Which topology most likely used coaxial cabling?

a. physical star

b. logical ring

c. physical bus

d. logical switching

Definition
c
Term

Which of the following is true of a MAC address?

a. a MAC address of all bunary 1s in the source address indicates a broadcast frame

b. Sometimes called the logical address

c. destination address of 12 hexadecimal Fs is broadcast

d. Composed of 12 bits

Definition
c
Term

Which type of wifi signal interference is most likely caused by leaves on trees?

a. Diffraction

b. Reflection

c. Refraction

d. Scattering

Definition
d
Term

Which of the following is a field of the most common ethernet frame type (choose all that apply)?

a. ARP trailer

b. FCS

c. Destination MAC address

d. data

e. MAC type

Definition
b,c,d
Term

Which access method uses a 'listen before sending' strategy?

a. token passing

b. CSMA/CD

c. token bus

d. polling

Definition
b
Term

Which of the following is true of full duplex ethernet (choose all that apply)?

a. stations can transmit and receive but not at the same time

b. collision detection is turned off

c. its possible only with switches

d. allows a physical bus to operate much faster

Definition
b and c
Term

Which of the following is defined by the extent to which signals in an ethernet bus topology network are propagated?

a. physical domain

b. collision domain

c. broadcast domain

d. logical domain

Definition
b
Term

Which of the following is considered a property of ethernet?

a. scalable

b. best effort delivery system

c. guaranteed delivery system

d. obsolete technology

Definition
a and b
Term

Which of the following is true of IEE 802.3an?

a. requires two airs of wires

b. uses cat 5 or higher cabling

c. currently best for desktop computers

d. operates only in full duplex mode

Definition
d
Term

Which of the following is a feature of 100BaseFX (choose all that apply)?

a. Often used as backbone cabling

b. best when only short cable runs are needed

c. fastest of the ethernet standards

d. uses two strands of fiber

Definition
a and d
Term

Which wifi standard can provide highest bandwidth?

a. 802.11ac

b. 802.11b

c. 802.11n

d. 802.11g

Definition
a
Term

Which of the following is true about infrastructure mode in wireless networks?

a. best used for temp networks

b. uses a central device

c. resembles a physical bus and logical ring

d. most like a logical bus and physical star

Definition
b and d
Term

How many channels can be used on an 802.11b network in N. America?

a. 7

b. 9

c. 11

d. 13

Definition
c
Term

Which access method does wifi use?

a. CSMA/CD

b. TOken bus

c. Demand priority

d. CSMA/CA - carrier sense multiple access / collision avoidance 

Definition
d
Term

Which wifi standard uses beamforming to allow an AP to send data to mulitple devices simultaneously?

a. 802.11ac

b. 802.11n

c. 802.11a

d. 802.11g

Definition
a
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