The command ntp server 10.1.1.1 is issued on a router. What impact does this command have?

• determines which server to send system log files to

• • synchronizes the system clock with the time source with IP address 10.1.1.1

• identifies the server on which to store backup configurations

• ensures that all logging will have a time stamp associated with it

Refer to the exhibit. Which of the three Cisco IOS images shown will load into RAM?

• The router selects an image depending on the boot system command in the configuration.

• The router selects an image depending on the value of the configuration register.

• The router selects the third Cisco IOS image because it is the most recent IOS image.

• The router selects the third Cisco IOS image because it contains the advipservicesk9 image.

Refer to the exhibit. Why are routers R1 and R2 not able to establish an OSPF adjacency?​

• • The process numbers are not the same in both routers.

• A backbone router cannot establish an adjacency with an ABR router.

• The serial interfaces are not in the same area.

• • The router ID values are not the same in both routers.

Refertotheexhibit.A user has configured a NIC on the PC as shown but finds that the PC is unable to access the Internet. What is the problem?

• The preferred DNS address is incorrect.

• The default gateway address is incorrect.

• The settings were not validated upon exit.

• There should not be an alternate DNS server.

Refer to the exhibit. A network engineer configured an ACL preventing Telnet and HTTP access to the HQ web server from guest users in the Branch LAN. The address of the web server is 192.168.1.10 and all guest users are assigned addresses in the 192.168.10.0/24 network. After implementing the ACL, no one can access any of the HQ servers. What is the problem?

• • Inbound ACLs must be routed before they are processed.

• The ACL is implicitly denying access to all the servers.

• Named ACLs require the use of port numbers.

• The ACL is applied to the interface using the wrong direction.

What is the term used to indicate a variation of delay?

• latency

• serialization delay

• speed mismatch

• jitter

What is the function of a QoS trust boundary?

• A trust boundary identifies the location where traffic cannot be remarked.

• A trust boundary only allows traffic to enter if it has previously been marked.

• A trust boundary identifies which devices trust the marking on packets that enter a network.

• A trust boundary only allows traffic from trusted endpoints to enter the network.

A network engineer performs a ping test and receives a value that shows the time it takes for a packet to travel from a source to a destination device and return. Which term describes the value?

• jitter

• latency

• priority

• bandwidth

What type of traffic is described as tending to be unpredictable, inconsistent, and bursty?

• Audio

• Video

• Data

• Voice

What type of traffic is described as requiring latency to be no more than 150 milliseconds (ms)?

• voice

• video

• data