propagation delay
voice packet serialization delay
congested egress queues
header overhead
packets dropped because of CRC errors
第1题:
● Serialization delay and (71) delay are the two components of network delay that are improved by increasing bandwidth. Serialization delay, i.e. the amount of time it takes to put the (72) on the wire, and queuing delay (depth of the queue) are improved by increasing the (73) from a 128Kbps circuit to a T1. However, three other components of delay, routing/switching delay, distance delay, and protocol delay are components that can not be positively affected by an (74) in bandwidth. If the circuits are not over-utilized, then increasing the bandwidth to improve the (75) of the application will only result in an increased bandwidth with no positive effects on performance.
第2题:
Serialization delay and(71)delay are the two components of network delay that are improved by increasing bandwidth. Serialization delay, i.e. the amount of time it takes to put the(72)on the wire, and queuing delay(depth of the queue)are improved by increasing the(73)from a 128Kbps circuit to a THowever, three other components of delay, routing/switching deiay, distance delay, and protocol delay are components that can not be positively affected by an(74)in bandwidth. If the circuits are not over-utilized, then increasing the bandwidth to improve the(75)of the application will only result in an increased bandwidth with no positive effects on performance.
A.buffering
B.queuing
C.receiving
D.timing
第3题:
听力原文:M: Can you give an example of types of risks Banks face?
W: Yes. The major type of risks is called credit risk. It means a counterpart fails to perform. according to a contractual arrangement.
Q: What are they talking about?
(13)
A.A contractual arrangement.
B.A counterpart.
C.Many types of risks.
D.Credit risk.
第4题:
What are two security appliances that can be installed in a network? ()
第5题:
A.ATM
B.IDS
C.IOS
D.IOX
E.IPS
F.SDM
第6题:
A. local
B. OSPF
C. direct
D. BGP
第7题:
A.Delay should be no more than 10 ms.
B.Loss should be no more than1 percent.
C.Jitter should be less then 40 ms.
D.Managed bandwidth is strongly recommended for voice control traffic.
第8题:
A. Cursor cache
B. Stored outline
C. SQL Tuning Set
D. Automatic Workload Repository (AWR) snapshots
第9题:
A.ATM
B.IDS
C.IOS
D.IOX
E.IPS
F.SDM
第10题:
What are two design guidelines for VoIP networks? ()