多項(xiàng)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


您可能感興趣的試卷

你可能感興趣的試題

1.多項(xiàng)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.

2.單項(xiàng)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

3.單項(xiàng)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.

4.單項(xiàng)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.

5.多項(xiàng)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