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IS3120 NETWORK COMMUNICATIONS INFRASTRUCTURE > IS 3120 CHAPTER 14 > Flashcards

IS 3120 CHAPTER 14 Flashcards

1
Q

The rate of data transfer or throughput; a theoretical maximum capability of a specific physical medium

A

Bandwidth

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2
Q

A collection of performance measurements against a system at a particular point in time

A

Baseline

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3
Q

A situation in which a network device drops one or more packets.

A

Discard

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4
Q

A protocol that defines how control messages are exchanged between nodes in a network

A

Internet Control Message Protocol (ICMP)

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5
Q

A standard of measurement

A

Metric

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6
Q

A study of how traffic moves through a network

A

Network readiness assessment (NRA)

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7
Q

The amount of time required to retransmit a packet

A

Retransmission

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8
Q

The amount of time it takes to send a packet to another node and have that node return the packet to the sender.

A

Round trip time (RTT)

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9
Q

A measure of the amount of traffic a network can handle.

A

Throughput

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10
Q
  1. The first step in measuring performance is to sample current latency.
    TRUE OR FALSE
A

FALSE

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11
Q
  1. Which term describes the amount of time it takes for a packet to travel from one node to another?
  2. Latency
  3. Bandwidth
  4. Throughput
  5. Jitter
A

Latency

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12
Q
  1. A ___ is a collection of performance measurements against a system at a particular point in time.
A

Baseline

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13
Q
  1. What is stye average latency of satellite links?
  2. 10 milliseconds
  3. 100 milliseconds
  4. 500 milliseconds
  5. 1,000 milliseconds
A

1,000 milliseconds

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14
Q 
5. Why might a network device discard a packet?
Select the correct answers.
1. Security policy
2. Link failure
3. QoS policy
4. Time-out
A

Security policy

QoS policy

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15
Q
  1. What action does a network device take when its buffers are full?
  2. Returns packets to their source
  3. Stops accepting packets
  4. Reduces time-to-live (TTL)
  5. Drops packets in buffers
A

Stops accepting packets

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16
Q
  1. Which protocol does ping and trace route use to measure performance?
  2. SNMP
  3. RTP
  4. TCP
  5. ICMP
A

ICMP

17
Q
  1. Which protocol is used to set device characteristics?
  2. SNMP
  3. RTP
  4. TCP
  5. ICMP
A

SNMP

18
Q
  1. Which TCP option should be set to the network MTU?
  2. Windows scale
  3. Maximum segment size
  4. SACK permitted
  5. Quick-start request
A

Maximum segment size

19
Q
  1. What describes a plan of action when a network’s performance falls below desired thresholds?
  2. QoE
  3. RTP
  4. QoS
  5. RTCP
A

QoS

IS3120 NETWORK COMMUNICATIONS INFRASTRUCTURE (15 decks)

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