How long will a port remain in the listening state by defaul

题目
单选题
How long will a port remain in the listening state by default?()
A

Depends on the number of switches in the spanning tree domain

B

50 seconds

C

15 seconds

D

Until the root directs it to start forwarding

E

20 seconds

F

Depends on the pott speed

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相似问题和答案

第1题:

多选题
Which of the following are byproducts of a structured maintenance plan?(Choose all that apply.)()
A

Predictable security vulnerabilities

B

Economies of scale

C

Improved expenditure forecasts

D

Increased downtime

E

Predictable equipment obsolescence

F

Consumption of fewer resources


正确答案: C,F
解析: 暂无解析

第2题:

单选题
As an experienced network administrator, you are aware of the knowledge that it is unnecessary to configure complex overlay network topologies while applying Cisco Wide Area Application Services (WAAS) technology. What is most probably the reason for that?()
A

Content pre-positioning

B

Automatic discovery of Cisco WAEs

C

Comprehensive logs, reports, and graphs

D

Remote scheduling of software distribution


正确答案: C
解析: 暂无解析

第3题:

单选题
川崎病的护理要点,哪项不妥()
A

发热期监测体温、热型及伴随症状

B

保持皮肤黏膜清洁,防止感染

C

急性期给予普食

D

注意观察心血管症状

E

注意药物不良反应


正确答案: D
解析: 川崎病的护理要点中急性期给予普食错误。评估患儿体液状态,给予清淡的高热量、高维生素、高蛋白质的流质或半流质饮食。鼓励患儿多饮水或静脉补液。

第4题:

单选题
If it is properly deployed, a controller-based access point is capable of monitoring all VLANs on anetwork when you select which of the following modes from the AP Mode drop-down menu onthecontroller?()
A

Mirror

B

Rogue Detector

C

Sniffer

D

Monitor


正确答案: A
解析: 暂无解析

第5题:

单选题
Which of the following commands would you enter if you wanted to display spanning treestatistical information?()
A

show spantree backbonefast

B

show spantree statistics

C

show spantree uplinkfast

D

show spantree blockedports

E

show spantree portstate

F

show spantree portvlancost


正确答案: F
解析: 暂无解析

第6题:

多选题
Which two statements are true about the protocols that are used for transmitting voice traffic?()
A

RTP multiplexing is used to keep multiple phone conversations separate

B

RTP provides end-to-end delivery services for voice traffic.

C

UDP is used to ensure a reliable transmission from sender to receiver.

D

RTP is used to provide resource reservation for the voice stream.

E

UDP provides multiplexing of multiple phone conversations.


正确答案: B,E
解析: 暂无解析

第7题:

单选题
A customer has 2 DS1s to add between adjacent nodes in a UPSR ring. What type of circuit should you recommend?()
A

VT circuits

B

STS circuits

C

VT tunnel circuits

D

1:1 protection circuits

E

1:N protection circuits


正确答案: D
解析: 暂无解析

第8题:

单选题
Which of the following solutions will encapsulate IPv6 packets with IPv4 headers?()
A

Create an IPv4 tunnel and assign the tunnel IPv6 addresses

B

Create IPv4 interfaces on both ends of the network, and use either static routes or a routingprocess to direct IPv6 packets through those interfaces

C

IPv6 packets cannot be encapsulated with IPv4 headers because the addresses are notcompatible

D

Create IFV6 interfaces on both ends of the network, and use static routes to point the IPv4address to those interfaces

E

Use an IPv6 routing protocol like OSPFv3 and assign IPv4 packets to that process

F

Create an IPv4 tunnel and use the tunnel mode ipv6ip command


正确答案: E
解析: 暂无解析

第9题:

单选题
患儿,男,10个月。频繁抽搐入院,查体前囟紧张,呼吸增快,首先宜采取的措施是()
A

吸氧

B

建立静脉通路

C

保持呼吸道通畅

D

镇静止惊,降颅压

E

头颅CT


正确答案: D
解析: 由临床表现知该患儿出现颅内压增高现象,应立即降低颅内压,预防脑疝。

第10题:

单选题
What is the purpose of configuring the router as a PPPoE client?()
A

to provide VPN access over L2TP

B

to enable PPP session from the router to the termination device at the headend for metro Ethernet connectivity

C

for DSL connectivity and removing the need for the end - user PC to ru n the PPPoE client software

D

for connecting the router to a cable modem, which bridges the Ethernet frames from the router to the cable modem termination system


正确答案: C
解析: 暂无解析

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