CCNA Service Provider Practice Test Results

Question 1
62% answer correctly
Which of the following about SSH is true?
Passwords are sent in clear text.
It uses UDP port 23.
It uses TCP port number 22.
It securely encrypts Telnet.
It is a TCP/IP transport layer protocol.
It is an OSI network layer protocol.
Question 2
42% answer correctly
On Cisco IOS XR, for which purpose is the turboboot procedure used?
To install and boot up a SMU
To perform an ISSU
The interface has no flow control configuration.
To install the IOS XR software from scratch using the ROM Monitor mode
To speed up the time it takes to boot up the IOS XR router
Use the negotiation auto command in interface configuration mode to enable link auto-negotiation to ensure that devices that share a link segment are automatically configured with the highest performance.
The range for MTU values is 64 bytes to 1518 bytes on the interface.
To install and boot up a PIE
The configuration supports only full-duplex operation.
Which of the following about 10/40/100 GigabitEthernet interface configuration on Cisco IOS XR is true?
To boot the router into ROM Monitor mode
Question 3
56% answer correctly
Using VLSM, how many /30 subnets can be derived from a single /27 Class C subnet?
4
16
8
1
2