Management and QoS CCNA review

Front

A network engineer must create a diagram of a multi-vendor network. Which command must be configured on the Cisco devices so that the topology of the network can be mapped?

Back

(config)#lldp run

Front

What is a function of TFTP in network operations?

Back

Transfers IOS image from a server to a router for firmware upgrades

Front

An engineer configures int G1/0 on the company PE router to connect to an ISP. Neighbor discovery is disabled. Which action is necessary to complete the configuration if the ISP uses third-party network devices?

Back

Enable LLDP globally

Front

The NTP server 192.168.0.3 command has been configured on R1 to make it an NTP client of R2. Which command must be configured on R2 so that it operates in server-only mode and relies only on its internal clock?

Back

ntp master 4

Front

Which QoS tool is used to optimize voice traffic on a network that is primarily intended for data traffic?

Back

PQ

Front

When deploying syslog, which severity level logs informational messages?

Back

6

Front

A network administrator must configure SSH for remote access to router R1. The requirement is to use a public and private key pair to encrypt management traffic to and from the connecting client. Which configuration meets the requirements? Options: ip domain-name cisco.com crypto key generate ec keysize 2048, ip domain-name cisco.com crypto key generate rsa modulus 1024, ip domain-name cisco.com crypto key generate ec keysize 1024, ip domain-name cisco.com crypto key encrypt rsa name myKey

Back

ip domain-name cisco.com crypto key generate rsa modulus 1024

Answer explanation

This is shown on several different sites for 3 of the 4 answers being correct. I believe the RSA one is the correct one because it is the default value for SSH. https://www.digitalocean.com/community/tutorials/ssh-essentials-working-with-ssh-servers-clients-and-keys

Front

How does QoS optimize voice traffic? Options: reducing bandwidth usage, reducing packet loss, differentiating voice and video traffic, increasing jitter

Back

differentiating voice and video traffic

Front

What is the purpose of traffic shaping?

Back

to provide fair queuing for buffered flows

Front

A network analyst is tasked with configuring the date and time on a router using EXEC mode. The date must be set to 12:00am. Which command should you use?

Back

clock set