CMIT 265 practice exam
Study online at https://quizlet.com/_6x7hgl
1. What topology connects each Star Topology
network device to a central hub?
2. What is a short circuit? When electrical signals take a path other than the intend-
ed path. In twisted pair wiring, a short means that a signal
sent on one wire might arrive on a different wire. CAUSES:
worn wire jackets, crushed wires that touch, and pierced
wires that touch metal.
3. What is CROSSTALK? Interference that is caused by signals within twisted pairs
of wires.
4. What is attenuation? The loss of signal strencth from one end of a cable to the
other caused by distance.
5. What is a split pair condition? A condition where a single wire in two different pairs is
reversed at both ends. EX: instead of matching the green
and green/white wires in pins 1 and 2, you swap the solid
green wire with the solid brown wire.
6. What security improvements are 1) Authentication for agents and managers
added by SNMP v3? 2) Encryption of SNMP information
3) Message integrity to ensure that data is not altered in
transit
7. Must Class B addresses on all net- Yes. EX: Class B address is 130.15.0.0 the other addresses
work nodes have the same net- must include 130.15
work address?
8. Can IPsec be deployed in the Yes BUT in firewalls, special access ports will need to be
presence of firewalls, routers, configured to allow IPsec traffic to pass.
and switches?
, CMIT 265 practice exam
Study online at https://quizlet.com/_6x7hgl
9. What networking device or ser- NAT
vice prevents the use of IPsec in
most cases?
10. What is a PACKET SNIFFER? Special software that captures (records) frames that are
transmitted on a network.
11. How is a packet sniffer used? -To identify the types of traffic on a network
-To view the exchange of packets between communicat-
ing devices
-To analyze packets sent to and from specific devices
-View packet contents
12. What is a port scanner used for? To identify protocol ports that are opened in a firewall or
active on a device.
13. What does a port scanner check? It checksindividual systems
14. What is a throughput tester? It measures the amount of data that can be transferred
through a network or processed by a device.
15. What is an Intrusion Detection A special network device that can dtect attacks and sus-
System (IDS)? picious activity. Passive IDS monitors, logs, and detects
security breaches but takes not action to stop attack. Ative
IDS (Or Itrusion Protection System IPS) performs funtions
of an IDS and also reacts when security breaches occur.
16. What is a TDR? Time Domain Reflector: A special device that sends elec-
trical pulses on a wire IOT discover information about the
cable. It is used to:
- Estimate the length of a wire
- Measure the cable impedance
- Identify the locations of splices and connectors on the
Study online at https://quizlet.com/_6x7hgl
1. What topology connects each Star Topology
network device to a central hub?
2. What is a short circuit? When electrical signals take a path other than the intend-
ed path. In twisted pair wiring, a short means that a signal
sent on one wire might arrive on a different wire. CAUSES:
worn wire jackets, crushed wires that touch, and pierced
wires that touch metal.
3. What is CROSSTALK? Interference that is caused by signals within twisted pairs
of wires.
4. What is attenuation? The loss of signal strencth from one end of a cable to the
other caused by distance.
5. What is a split pair condition? A condition where a single wire in two different pairs is
reversed at both ends. EX: instead of matching the green
and green/white wires in pins 1 and 2, you swap the solid
green wire with the solid brown wire.
6. What security improvements are 1) Authentication for agents and managers
added by SNMP v3? 2) Encryption of SNMP information
3) Message integrity to ensure that data is not altered in
transit
7. Must Class B addresses on all net- Yes. EX: Class B address is 130.15.0.0 the other addresses
work nodes have the same net- must include 130.15
work address?
8. Can IPsec be deployed in the Yes BUT in firewalls, special access ports will need to be
presence of firewalls, routers, configured to allow IPsec traffic to pass.
and switches?
, CMIT 265 practice exam
Study online at https://quizlet.com/_6x7hgl
9. What networking device or ser- NAT
vice prevents the use of IPsec in
most cases?
10. What is a PACKET SNIFFER? Special software that captures (records) frames that are
transmitted on a network.
11. How is a packet sniffer used? -To identify the types of traffic on a network
-To view the exchange of packets between communicat-
ing devices
-To analyze packets sent to and from specific devices
-View packet contents
12. What is a port scanner used for? To identify protocol ports that are opened in a firewall or
active on a device.
13. What does a port scanner check? It checksindividual systems
14. What is a throughput tester? It measures the amount of data that can be transferred
through a network or processed by a device.
15. What is an Intrusion Detection A special network device that can dtect attacks and sus-
System (IDS)? picious activity. Passive IDS monitors, logs, and detects
security breaches but takes not action to stop attack. Ative
IDS (Or Itrusion Protection System IPS) performs funtions
of an IDS and also reacts when security breaches occur.
16. What is a TDR? Time Domain Reflector: A special device that sends elec-
trical pulses on a wire IOT discover information about the
cable. It is used to:
- Estimate the length of a wire
- Measure the cable impedance
- Identify the locations of splices and connectors on the
