A. A CSU/DSU converts analog signals from a router to a leased line; a modem converts analog signals from a router to a leased line.
B. A CSU/DSU converts analog signals from a router to a phone line; a modem converts digital signals from a router to a leased line.
C. A CSU/DSU converts digital signals from a router to a phone line; a modem converts analog signals from a router to a phone line.
D. A CSU/DSU converts digital signals from a router to a leased line; a modem converts digital signals from a router to a phone line.
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A. show reload
B. show boot
C. show running-config
D. show version
A. LAN
B. routing
C. WAN
D. network
A. presentation
B. session
C. transport
D. network
E. physical
A. transport
B. network
C. presentation
D. session
E. application
A. minimum cell rate (MCR)
B. quality of service (QoS)
C. modulation
D. packet switching exchange (PSE)
E. reliable transport protocol (RTP)
最新試題
Which command encrypts all plaintext passwords?（）
Which Cisco IOS diagnostics command can disrupt the operation of a router under high-load conditions?（）
A network administrator is planning a network installation for a large organization.The design requires 100 separate subnetworks,so the company has acquired a Class B network address.What subnet mask will provide the 100 subnetworks required, if 500 usable host addresses are required per subnet?（）
A network administrator needs to configure a serial link between the main office and a remote location.The router at the remote office is a non-cisco router. How should the network administrator configure the serial interface of the main office router to make the connection?（）
At which layer of the OSI model dose PPP perform?（）
Which device might be installed at a branch office to enable and manage an IPsec site-to-site VPN?（）
At which layer of the OSI model is RSTP used to prevent loops?（）
What is the result of issuing the frame-relay map ip 192.168.1.2 202 broadcast command?（）
Which command displays the CHAP authentication process as it occurs between two routers?（）
You have been asked to come up with a subnet mask that will allow all three web servers to be on the same network while providing the max number of subnets.Which network address and subnet mask meet this requirement?（）