多項選擇題An inbound access list has been configured on a serial interface to deny packet entry for TCP and UDP ports21, 23 and 25. What types of packets will be permitted by this ACL? (Choose three.)()

A.FTP
B.Telnet
C.SMTP
D.DNS
E.HTTP
F.POP3


您可能感興趣的試卷

你可能感興趣的試題

2.多項選擇題The OSPF Hello protocol performs which of the following tasks? (Choose two.)()

A.It provides dynamic neighbor discovery.
B.It detects unreachable neighbors in 90 second intervals.
C.It maintains neighbor relationships.
D.It negotiates correctness parameters between neighboring interfaces.
E.It uses timers to elect the router with the fastest links as the designated router.
F.It broadcasts hello packets throughout the internetwork to discover all routers that are running OSPF

3.多項選擇題A network administrator wants to ensure that only the server can connect to port Fa0/1 on a Catalyst switch. The server is plugged into the switch Fa0/1 port and the network administrator is about to bring the server online. What can the administrator do to ensure that only the MAC address of the server is allowed by switch port Fa0/1?()

A.Configure port Fa0/1 to accept connections only from the static IP address of the server.
B.Employ a proprietary connector type on Fa0/1 that is incompatible with other host connectors.
C.Configure the MAC address of the server as a static entry associated with port Fa0/1.
D.Bind the IP address of the server to its MAC address on the switch to prevent other hosts from spoofing the server IP address.
E.Configure port security on Fa0/1 to reject traffic with a source MAC address other than that of the server.
F.Configure an access list on the switch to deny server traffic from entering any port other than Fa0/1.

4.多項選擇題At which layers of the OSI model do WANs operate? (Choose two.)()

A.application layer
B.session layer
C.transport layer
D.network layer
E.datalink layer
F.physical layer

5.多項選擇題Which three statements describe the differences between RIP version 1 and RIP version 2? (Choose three.)()

A.RIP version 1 broadcasts updates whereas RIP version 2 uses multicasts.
B.RIP version 1 multicasts updates while RIP version 2 uses broadcasts.
C.Both RIP version 1 and RIP version 2 are classless routing protocols.
D.RIP Version 2 is a classless routing protocol whereas RIP version 1 is a classful routing protocol.
E.Both RIP version 1 and version 2 support authentication.
F.RIP version 2 sends the subnet mask in updates and RIP version 1 does not.

6.單項選擇題When a new trunk is configured on a 2950 switch, which VLANs by default are allowed over the trunk link?()

A.no VLANs
B.all VLANs
C.only VLANs 1 - 64
D.only the VLANs that are specified when creating the trunk

7.單項選擇題What is the function of the command switchport trunk native vlan 999 on a Cisco Catalyst switch?()

A.It creates a VLAN 999 interface.
B.It designates VLAN 999 for untagged traffic.
C.It blocks VLAN 999 traffic from passing on the trunk.
D.It designates VLAN 999 as the default for all unknown tagged traffic.

8.單項選擇題A Cisco router is booting and has just completed the POST process. It is now ready to find and load an IOS  image. What function does the router perform next?()

A.It checks the configuration register.
B.It attempts to boot from a TFTP server.
C.It loads the first image file in flash memory.
D.It inspects the configuration file in NVRAM for boot instructions.

9.多項選擇題What functions do routers perform in a network? (Choose two.)()

A.packet switching
B.access layer security
C.path selection
D.VLAN membership assignment
E.bridging between LAN segments
F.microsegmentation of broadcast domains

10.單項選擇題At which OSI layer is a logical path created between two host systems?()

A.session
B.transport
C.network
D.data link
E.physical

最新試題

An administrator must assign static IP addresses to the servers in a network.For network 192.168.20.24/29, the router is assigned the first usable host address while the sales server is given the last usable host address. Which of the following should be entered into the IP propertied box for the sales server?()

題型:單項選擇題

When you are troubleshooting an ACL issue on a router,which command can help you to verify which interfaces are affected by the ACL?()

題型:單項選擇題

Which device might be installed at a branch office to enable and manage an IPsec site-to-site VPN?()

題型:單項選擇題

A network administrator is trying to add a new router into an established OSPF network.The networks attached to the new router do not appear in the routing tables of the other OSPF routers.Given the information in the partial configuration shown below,what configuration error is causing this problem?()Router(config)#router ospf 1Router(config-router)#network 10.0.0.0 255.0.0.0 area 0

題型:單項選擇題

Which protocol reduces administrative overhead in a switched network by allowing the configuration of a new VLAN to be distributed to all the switches in a domain?()

題型:單項選擇題

A router receives information about network 192.168.10.0/24 from multiple sources.What will the router consider the most reliable information about the path to that network?()

題型:單項選擇題

Which command is used to display the collection of OSPF link states?()

題型:單項選擇題

Three switches are connected to one anther via trunk ports.Assuming the default switch configuration,which switch is elected as the root bridge for the spanning-tree instance of vlan 1?()

題型:單項選擇題

Which cisco ios command can help to determine the timing of various debug events,relative to each other,when you are debugging a complicated router issue?()

題型:單項選擇題

What is the default administrative distance of OSPF?()

題型:單項選擇題