CCNA Service Provider Practice Test Results

Question 1
42% answer correctly
On Cisco IOS XR, for which purpose is the turboboot procedure used?
To install and boot up a PIE
To perform an ISSU
To install and boot up a SMU
The configuration supports only full-duplex operation.
To boot the router into ROM Monitor mode
To install the IOS XR software from scratch using the ROM Monitor mode
The interface has no flow control configuration.
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.
Which of the following about 10/40/100 GigabitEthernet interface configuration on Cisco IOS XR is true?
The range for MTU values is 64 bytes to 1518 bytes on the interface.
Question 2
56% answer correctly
Using VLSM, how many /30 subnets can be derived from a single /27 Class C subnet?
8
1
2
4
16
Question 3
35% answer correctly
Given these four Class B networks: 172.104.0.0, 172.105.0.0, 172.106.0.0, 172.107.0.0, what is the supernet (CIDR) address that summarizes these four Class B networks?
172.104.0.0/12
172.104.0.0/13
172.104.0.0/15
172.104.0.0/14
172.104.0.0/11