多选题
Which three of the following OSI model layers also belong to the TCP/IP model?（）
The application layer
The session layer
The data link layer
The transport layer
The network interface layer
The physical layer
多选题
Which fields are included in the TCP header?（）
Source Port
Acknowledgement Number
Request Number
Destination Address
Window
Data
单选题
You have just purchased a brand new router and wish to have the router prompt you through the initial configuration commands. Which router mode does this describe?（）
ROM Monitor mode
SETUP mode
Autoflash mode
RXBOOT mode
None of the above
多选题
You are a trainee technician at TestKing, Inc. Your instructor tells you to backup an IOS image of a Cisco device to a Windows 2003 server on the network.What should you do first?（）
Make sure that the network server can be accessed.
Check that the authentication for access is set.
Assure that the network server has adequate space for the code image.
Verify any file naming and path requirements.
Make sure that the server can load and run the bootstrap code.
单选题
By default, which of the following factors determines the spanning-tree path cost?（）
It is the individual link cost based on latency
It is the sum of the costs based on bandwidth
It is the total hop count
It is dynamically determined based on load
多选题
Which connections allow the use of full-duplex Ethernet?（）
Switch to host
Switch to switch
Hub to hub
Switch to hub
Host to host
多选题
On a Cisco network, which of the following modes of flow control are commonly used to mitigate the effects of busy data networks?（）
Source Quench.
Learning.
Buffering.
Windowing.
Cut-Through.
多选题
What are some characteristics of the typical VLAN arrangement?（）
VLANs logically divide a switch into multiple, independent switches at Layer 2.
Trunk links can carry traffic for multiple VLANs.
VLAN implementation significantly increases traffic due to added trunking information.
A VLAN can span multiple switches.
VLANs extend the collision domain to include multiple switches.
VLANs typically decrease the number of multiple switches.
单选题
You have just obtained a modular Cisco router with 2 serial connections and a BRI/U interface. What other physical piece of hardware is required in order to establish an ISDN connection?（）
Nothing. The router is already suitable.
A BRI WAN interface in the router.
An external NT1 to terminate the local loop.
A TA/NT1 device on the router.
单选题
You are given a PC, a router, and a cable. Select the correct combination that will allow you to log into the router locally using a terminal emulation program such as HyperTerminal.（）
Connect the PC's COM port to the router's console port using a straight-through cable.
Connect the PC's COM port to the router's console port using a rollover cable.
Connect the PC's COM port to the router's ethernet port using a straight-through cable.
Connect the PC's ethernet port to the router's ethernet port using a rollover cable.
Connect the PC's ethernet port to the router's ethernet port using a straight- through cable.
