單項選擇題You are the network administrator of a Layer 3 switched network. Users in one VLAN are complaining thataccess to the server VLAN is very slow from time to time. Traffic in the local VLAN works without any issue，and users in other VLANs do not have any complaint to reach the server VLAN. What is most likely thecause of this issue？（）

A.routing issue
B.denial-of-service attack
C.MAC flooding
D.spanning-tree recalculation
E.Layer 2 loop
F.ARP spoofing attack


您可能感興趣的試卷

你可能感興趣的試題

2.多項選擇題Your company is researching a new application that runs over IPv6， but part of it must still have IPv4 support. Your company uses a traditional IPv4 network. Your plan is not to run IPv6 over the whole network， but to segment parts of the network or even to operate simultaneously with IPv6 and IPv4. You must make a brief presentation about IPv6 technology to the board of technical directors. Which three of these items could be part of your presentation？ （）

A. Tunnel IPv6 over IPv4 to connect far-end IPv6 networks
B. Explain why configuring IPv4 and IPv6 at the same time over the same LAN interface is not possible
C. Explain why configuring IPv4 and IPv6 at the same time over the same LAN interface is possible
D. What is the meaning of EUI-64 and how does it work？
E. Tunnel IPv4 over IPv6 to connect far-end IPv4 networks.

3.單項選擇題What is a characteristic of Network Time Protocol？（）

A.NTP updates are sent in the timezone they are collected in，and the syslog server will adjust based  on the input time.
B.NTP authentication verifies the source，not the recipient.
C.NTP authentication requires that the recipient has multiple strata clocks to ensure accuracy.
D.Secure NTP can be configured to use SHA-1 hashing，since NTP is very insecure.
E.A stratum 0 clock should be configured at the core of every network，so it can connect to an accuratetime source.

4.單項選擇題

Refer to the exhibit. You are setting up a 2-gigabit EtherChannel. Following IEEE standards， the exhibit shows your configuration in a local switch1. However， EtherChannel is not coming up. Which one of these statements could be a possible reason？（）

A. EtherChannel is only available in Cisco equipment. 
B. The customer side is supposed to be running PAgP, which is a Cisco standard. 
C. PAgP is not an IEEE standard. VRRP should be used. 
D. The configuration on switch1 needs to be modified to use LACP. 

最新試題

Which three message types are valid PIMv2 message types？（）

題型：多項選擇題

Based on the output provided in the exhibit， to which address or location will the router forward a packet sent to 192.168.32.1？（）

題型：單項選擇題

All of these are fundamental building blocks of differentiated services Traffic Conditioner Block exceptwhich one？（）

題型：單項選擇題

Based on the exhibit presented. What will be the objective of this route map when applied to traffic passing through a router？（）

題型：單項選擇題

Which of these statements about penultimate hop popping are true？（）

題型：多項選擇題

Which multicast address is reserved for cisco-rp-discovery？（）

題型：單項選擇題

Which two are differences between IGMPv2 and IGMPv3 reports？（）

題型：多項選擇題

What is the correct command to set the router ID for an OSPFv3 process？（）

題型：單項選擇題

Which two of these are used in the selection of a root bridge in a network utilizing Spanning Tree ProtocolIEEE 802.1 D？（）

題型：多項選擇題

Which of these best describes the actions taken when a VTP message is received on a switch configuredwith the VTP mode "transparent"？（）

題型：單項選擇題