CCNA系列认证单项选择题每日一练(2019.07.26)

单项选择题
For which type of connection should a straight-through cable be used?（）
A.switch to switch
B.switch to hub
C.switch to router
D.hub to hub
E.router to PC
单项选择题
What is the effect of using the service password-encryption comma（）。
A.Only the enable password will be encrypted.
B.Only the enable secret password will be encrypted.
C.Only passwords configured after the command has been entered will be encrypted.
D.It will encrypt the secret password and remove the enable secret password fromthe configuration.
E.It will encrypt all current and future passwords.
单项选择题
As a TestKing trainee you are required to set the default gateway on a Cisco switch to the IP address of 192.168.1.115. Which IOS command should you use?（）
A. TestKSwitch(config)# ip route-default 192.168.1.115
B. TestKSwitch(config)# ip default-gateway 192.168.1.115
C. TestKSwitch(config)# ip route 192.168.1.115 0.0.0.0
D. TestKSwitch(config)# ip default-network 192.168.1.115
单项选择题
Which statement most accurately describes the account planning service component in the prepare phase for Cisco Unified Communications（）
A.It performs a detailed financial analysis， including current phone network costs， training， and return of investment.
B.It researches unique challenges and conducts competitive analysis to determine a vertical approach and strategy.
C.It identifies the key players， high-level solution requirements， timelines， and scope of the opportunity.
D.It provides the partner with information regarding customer acceptance of the new solution.
单项选择题
If the router R1 has a packet with a destination address 192.168.1.255, what describes the operation of the network（）。
A.R1 will forward the packet out all interfaces.
B.R1 will drop this packet because this it is not a valid IP address.
C.As R1 forwards the frame containing this packet, Sw-A will add 192.168.1.255 to its MAC table.
D.R1 will encapsulate the packet in a frame with a destination MAC address of FF-FF-FF-FF-FF-FF
E.As R1 forwards the frame containing this packet, Sw-A will forward it to the device assigned the IP address of 192.168.1.255.