Networks: Routing and Marks Essay

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SAMPLE EXAMINATION CIS3003
You are required to answer eight (8) questions.

This examination is worth a total of one hundred (100) marks.

Please record multiple choice questions in the multiple choice answer sheet provided.
Please record your answers in the examination answer booklet provided.

Part A

Question (20 Marks)

Instructions

Answer each of the multiple choice questions by copying the choice into the examination booklet. Only the answer option is required.

Example Question:

CMIP:

a) is the TCP/IP network management standard
b) refers to Common Management Interface Protocol
c) is older than SNMP
d) is more widely used than SNMP
e) is the Internet network management standard

You would write the answer in the examination booklet. In this case it is b).

2.1) The building block design approach is sometimes called:

a) wide and shallow
b) narrow and deep
c) wide and deep
d) narrow and shallow
e) narrow and flat (1 mark)

2.2) A network switch failure is an example of a(n) ________ threat.

a) Internal
b) disruptive
c) causal
d) intrusion
e) disaster (1 mark)

2.3) The key principle in preventing disruption, destruction and disaster is ___________.

a) redundancy
b) control spreadsheet
c) IDS
d) anti-virus software
e) prevention controls
(1 mark)

2.4) When a person uses a regular modem to make a connection to an Internet service provider through POTS, the data travels over a:

a) dedicated circuit
b) dialed circuit
c) ISDN circuit
d) VPN circuit
e) T-1 carrier circuit (1 mark)

2.5) ISDN Basic Rate Interface:

a) is typically offered only to commercial customers
b) provides a communications circuit with two 64 Kbps B channels, plus one D channel
c) is defined exactly the same way in Europe
d) has an upper capacity of 1.544 Mbps
e) is comprised of analog circuits only (1 mark)

2.6) In a ring design WAN,

a) messages can take a long time to travel from the sender to the receiver
b) a message arrives at all computers on the network simultaneously
c) messages always arrive faster than in other types of layouts
d) messages are delivered directly from sender to receiver because there is a point-to-point connection directly between each sender and each receiver
e) messages always take one second to travel between sender and receiver (1 mark)

2.7) A _______ is a connectionless method of sending data packets on a packet switched service.

a) bursty packet
b) virtual circuit
c) datagram
d) histogram
e) permanent virtual circuit (1 mark)

2.8) Gateways:

a) process all messages, even if the messages are not explicitly addressed to them
b) can translate one network protocol into another
c) are less complex than bridges
d) are most often used as the interface between two or more networks that have similar data link and network layer protocols
e) cannot perform a routing function (1 mark)

2.9) Which of the following is not true about Layer-3 switches?

a) They switch messages based on their IP address.
b) They can be used in place of routers.
c) They function faster than routers.
d) They have more simultaneously active ports than routers.
e) They can only switch messages based on their data link layer addresses.
(1 mark)

2.10) A __________ type of BN has a star topology with one device, such as a switch, at its center.

a) Bridged backbone
b) Virtual LAN
c) Hubbed backbone
d) Switched backbone
e) Routed backbone (1 mark)

2.11) A(n) _____connects all networks within a company, regardless of whether it crosses state, national, or international boundaries.

a) LAN
b) MAN
c) enterprise network
d) campus network
e) core network (1 mark)

2.12) A _____________ type of BN is a new type of LAN/BN architecture made possible by intelligent, high speed switches that assign computers to LAN segments via software, rather than by hardware.

a) Bridged backbone
b) Virtual LAN
c) Hubbed backbone
d) Collapsed
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