Tag: Cisco Certified Network Associate (200-301 CCNA)

Cisco Certified Network Associate (200-301 CCNA) – Question548

What is a DHCP client?

A. a workstation that requests a domain name associated with its IP address
B. a host that is configured to request an IP address automatically
C. a server that dynamically assigns IP addresses to hosts.
D. a router that statically assigns IP addresses to hosts.

Correct Answer: B

Cisco Certified Network Associate (200-301 CCNA) – Question547

What is a function of TFTP in network operations?

A. transfers IOS images from a server to a router for firmware upgrades
B. transfers a backup configuration file from a server to a switch using a username and password
C. transfers configuration files from a server to a router on a congested link
D. transfers files between file systems on a router

Correct Answer: A

Cisco Certified Network Associate (200-301 CCNA) – Question546

What is the purpose of traffic shaping?

A. to be a marking mechanism that identifies different flows
B. to provide fair queuing for buffered flows
C. to mitigate delays over slow links
D. to limit the bandwidth that a flow can use

Correct Answer: D

Explanation:

Explanation:
The primary reasons you would use traffic shaping are to control access to available bandwidth, to ensure that traffic conforms to the policies established for it, and to regulate the flow of traffic in order to avoid congestion that can occur when the sent traffic exceeds the access speed of its remote, target interface.

Cisco Certified Network Associate (200-301 CCNA) – Question544

In QoS, which prioritization method is appropriate for interactive voice and video?

A. traffic policing
B. round-robin scheduling
C. low-latency queuing
D. expedited forwarding

Correct Answer: C

Explanation:

Explanation:
Low Latency Queuing (LLQ) is the preferred queuing policy for VoIP audio. Given the stringent delay/jitter sensitive requirements of voice and video and the need to synchronize audio and video for CUVA, priority (LLQ) queuing is the recommended for all video traffic as well. Note that, for video, priority bandwidth is generally fudged up by 20% to account for the overhead.

Cisco Certified Network Associate (200-301 CCNA) – Question543

Which feature or protocol determines whether the QOS on the network is sufficient to support IP services?

A. LLDP
B. CDP
C. IP SLA
D. EEM

Correct Answer: C

Explanation:

Explanation:
IP SLA allows an IT professional to collect information about network performance in real time. Therefore it helps determine whether the QoS on the network is sufficient for IP services or not.
Cisco IOS Embedded Event Manager (EEM) is a powerful and flexible subsystem that provides real-time network event detection and onboard automation. It gives you the ability to adapt the behavior of your network devices to align with your business needs.

Cisco Certified Network Associate (200-301 CCNA) – Question542

Which keyword in a NAT configuration enables the use of one outside IP address for multiple inside hosts?

A. source
B. static
C. pool
D. overload

Correct Answer: D

Explanation:

Explanation:
By adding the keyword “overload” at the end of a NAT statement, NAT becomes PAT (Port Address Translation). This is also a kind of dynamic NAT that maps multiple private IP addresses to a single public IP address (many-to-one) by using different ports. Static NAT and Dynamic NAT both require a one-to-one mapping from the inside local to the inside global address. By using PAT, you can have thousands of users connect to the Internet using only one real global IP address. PAT is the technology that helps us not run out of public IP address on the Internet. This is the most popular type of NAT.
An example of using “overload” keyword is shown below:
R1(config)# ip nat inside source list 1 interface ethernet1 overload