單項選擇題Why would an administrator change the value of the spanning-tree priority of a switch?()

A. in order to optimize the path that frames take from source to destination
B. to increase the priority so a designated port will become a root port
C. to increase the BID, so the switch is more likely to become root bridge
D. in order to allow VLANs to be sent from one switch to another across a single link
E. to force a given switch to become an STP server


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1.多項選擇題Which of the following components must be elected before the Spanning Tree Protocol can converge in a switched LAN?()

A. designated ports.
B. duplex operating mode.
C. fast mode ports.
D. root bridge.
E. root ports.
F. BDPU priority.

2.單項選擇題What is the subnetwork number of a host with an IP address of 172.16.210.0/22?()

A. 172.16.42.0
B. 172.16.107.0
C. 172.16.208.0
D. 172.16.252.0
E. 172.16.254.0

3.多項選擇題Which statements describe the routing protocol OSPF?()

A. It supports VLSM.
B. It is used to route between autonomous systems.
C. It confines network instability to one area of the network.
D. It increases routing overhead on the network.
E. It allows extensive control of routing updates.
F. It is simpler to configure than RIP v2.

4.單項選擇題On point-to-point networks, OSPF hello packets are addressed to which address?()

A.127.0.0.1
B.172.16.0.1
C.192.168.0.5
D.223.0.0.1
E.224.0.0.5
F.254.255.255.255

5.多項選擇題Which of the following IP addresses can be assigned to host devices?()

A.205.7.8.32/27
B.191.168.10.2/23
C.127.0.0.1
D.224.0.0.10
E.203.123.45.47/28
F.10.10.0.0/13

7.單項選擇題Which statement describes a spanning-tree network that has converged?()

A. All switch and bridge ports are in the forwarding state.
B. All switch and bridge ports are assigned as either root or designated ports.
C. All switch and bridge ports are in either the forwarding or blocking state.
D. All switch and bridge ports are either blocking or looping.

8.多項選擇題What are three valid reasons to assign ports on VLANs on a switch?()

A. to make VTP easier to implement
B. to isolate broadcast traffic
C. to increase the size of the collision domain
D. to allow more devices to connect to the network
E. to logically group hosts according to function
F. to increase network security

9.單項選擇題A college has a small campus where 25 faculty members are located. The faculty offices and student computers are currently on the same network. The faculty are concerned about students being able to capture packets going across the network and obtain sensitive material. What could a network administrator do to protect faculty network traffic from student connections?()

A. Install anti-virus software on the student computers.
B. Put the faculty computers in a separate VLAN.
C. Power down the switches that connect to faculty computers when they are not in use.
D. Remove the student computers from the network and put them on a peer-to-peer network.
E. Create an access list that blocks the students from the Internet where the hacking tolls are located.

10.多項選擇題Which statement describe two of the benefits of VLAN Trunking Protocol?()

A. VTP allows routing between VLANs.
B. VTP allows a single switch port to carry information to more than one VLAN.
C. VTP allows physically redundant links while preventing switching loops.
D. VTP simplifies switch administration by allowing switches to automatically share VLAN configuration information.
E. VTP helps to limit configuration errors by keeping VLAN naming consistent across the VTP domain.
F. VTP enhances security by preventing unauthorized hosts from connecting to the VTP domain.

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A Router with a BRI/T interface will be used for an ISDN Connection what other ISDN device is required to complete this connection? ()

題型:單項選擇題

Given a subnet mask of 255.255.255.224, which of the following addresses can be assigned to network hosts?()

題型:多項選擇題

The following access list was applied outbound on he E0 interface connected to the 192.168.1.8/29 LAN:access-list 123 deny tcp 192.168.1.8 0.0.0.7 eq 20 anyaccess-list 123 deny tcp 192.168.1.9 0.0.0.7 eq 21 anyWhat effect will this access list have?()

題型:單項選擇題

Which of the following describe router functions?()

題型:多項選擇題

What feature of a networks switch allows an administrative to create separate broadcast domains?()

題型:單項選擇題

Which statement describes the rule of split horizon?()

題型:單項選擇題

Which of the following if addresses can be assigned to host devices?()

題型:多項選擇題

What does a configuration Register Setting of 0x2105 indicate to the Router? ()

題型:單項選擇題

Five minutes after issuing the show running-config command, a technician enters the command again and notices that several access list statements have been altered. Because of this, the technician believes that the router is being configured by an unknown person through Telnet. Before changing the router passwords, the technician would like to discover if anyone is connected to the router by Telnet and stop them from making further changes.Which commands will accomplish these options?()

題型:多項選擇題

Which of the following statements regarding routed and routing protocols are true?()

題型:多項選擇題