多項(xiàng)選擇題Which two are features of IPv6?()

A.multicast
B.broadcast
C.allcast
D.podcast
E.anycast


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1.單項(xiàng)選擇題What is the difference between a CSU/DSU and a modem?()

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.

2.單項(xiàng)選擇題

Refer to the exhibit. What is the most appropriate summarization for these routes?()

A.10.0.0.0/21
B.10.0.0.0/22
C.10.0.0.0/23
D.10.0.0.0/24

4.單項(xiàng)選擇題What is the first 24 bits in a MAC address called?()

A. NIC
B. BIA
C. OUI
D. VAI

5.單項(xiàng)選擇題What is known as "one-to-nearest" addressing in IPv6?()

A.global unicast
B.anycast
C.multicast
D.unspecified address

6.多項(xiàng)選擇題Refer to the exhibit. A junior network administrator was given the task of configuring port security on SwitchA to allow only PC_A to access the switched network through port fa0/1. If any other device is detected, the port is to drop frames from this device. The administrator configured the interface and tested it with successful pings from PC_A to RouterA, and then observes the output from these two show commands.Which two of these changes are necessary for SwitchA to meet the requirements? ()

A.Port security needs to be globally enabled.
B.Port security needs to be enabled on the interface.
C.Port security needs to be configured to shut down the interface in the event of a violation.
D.Port security needs to be configured to allow only one learned MAC address.
E.Port security interface counters need to be cleared before using the show command.
F.The port security configuration needs to be saved to NVRAM before it can become active.

7.多項(xiàng)選擇題Which two of these statements are true of IPv6 address representation? ()

A.There are four types of IPv6 addresses: unicast, multicast, anycast, and broadcast.
B.A single interface may be assigned multiple IPv6 addresses of any type.
C.Every IPv6 interface contains at least one loopback address.
D.The first 64 bits represent the dynamically created interface ID.
E.Leading zeros in an IPv6 16 bit hexadecimal field are mandatory.

8.單項(xiàng)選擇題

Refer to the exhibit. When running OSPF, What would cause router A not to form an adjacency with router B?()

A.The loopback addresses are on different subnets
B.The value of the dead timers on the router are different
C.Route summarization is enabled on both routers
D.The process indentifier on router A is different than the process identifier on router B

9.單項(xiàng)選擇題Refer to the exhibit.What is the reason that the interface status is “administratively down,line protocol down”?()

A.There is a mismatch in encapsulation types
B.The wrong type of cable is connected to the interface
C.The interface has been configured with the shutdown command
D.The interface is not receiving any keepalives
E.The interface needs to be configured as a DTE device
F.There is no encapsulation type configured

10.單項(xiàng)選擇題Refer to the exhibit.What is the effect of the configuration that is shown?()

A.It tells the router or switch to try establish an SSH connection first and if that fail to use telnet.
B.It configures a cisco network device to use the SSH protocol on incoming communications via the virtual terminal ports.
C.It allows seven failed login attempts before the VTY lines are temporarily shutdown.
D.It configures the virtual terminal lines with the password 030752180500.
E.It configures SSH globally for all logins.