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.
您可能感興趣的試卷
你可能感興趣的試題
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)
A. bandwidth
B. delay
C. load
D. reliability
A. atm-dxi
B. frame-relay
C. hdlc
D. lapb
E. ppp
A. show protocols
B. show process
C. show system
D. show version
A. debug icmp
B. debug ip icmp
C. debug tcp
D. debug packet
A. show ip route
B. show route
C. traceroute
D. trace ip route
最新試題
Which encapsulation type is a Frame Relay encapsulation type that is supported by Cisco routers?（）
Which device might be installed at a branch office to enable and manage an IPsec site-to-site VPN?（）
Which statement is true, as relates to classful or classless routing?（）
At which layer of the OSI model dose PPP perform?（）
Which statement describes the rule of split horizon?（）
Which name describes an IPV6 host-enable tunneling technique that uses IPV4 UDP,does not require dedicated gateway tunnels,and can pass through existing IPV4 NAT gateways?（）
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?（）
Which command displays the CHAP authentication process as it occurs between two routers?（）
At which layer of the OSI model is RSTP used to prevent loops?（）
Which IPsec security protocol should be used when confidentiality is required?（）