20 questions part one

1. How is the native VLAN secured in a network?

separate from other VLANs within the administrative domain

give it a value in the private VLAN range

assign it as VLAN 1

configure it as a different VLAN ID on each end of the link

2. PC1 is trying to ping PC3 for the first time and sends out an ARP to S1 Which action is taken by S1?

It forwards it out G0/3 only

It is flooded out every port except G0/0.

It drops the frame.

It forwards it out interface G0/2 only.

3. Which spanning-tree enhancement avoids the learning and listening states and immediately places ports in the forwarding state?

BPDUfilter

PortFast

Backbonefast

BPDUguard

4. How do TCP and UDP differ in the way they guarantee packet delivery?

TCP uses checksum, acknowledgement, and retransmissions, and UDP uses checksums only.

TCP uses two-dimensional parity checks, checksums, and cyclic redundancy checks and UDP uses retransmissions only.

TCP uses checksum, parity checks, and retransmissions, and UDP uses acknowledgements only.

TCP uses retransmissions, acknowledgement and parity checks and UDP uses cyclic redundancy checks only.

5. What protocol allows an engineer to back up 20 network router configurations globally while using the copy function?

SMTP

SNMP

TCP

FTP

6. Which QoS Profile is selected in the GUI when configuring a voice over WLAN deployment?

Bronze

Platinum

Silver

Gold

7. What is the benefit of using FHRP?

reduced management overhead on network routers

balancing traffic across multiple gateways in proportion to their loads

higher degree of availability

reduced ARP traffic on the network

8. Which CRUD operation corresponds to the HTTP GET method?

read

update

create

delete

9. What is the purpose of using First Hop Redundancy Protocol in a specific subnet?

Filter traffic based on destination IP addressing

Sends the default route to the hosts on a network

ensures a loop-free physical topology

forwards multicast hello messages between routers

10. Which function is performed by the collapsed core layer in a two-tier architecture?

enforcing routing policies

marking interesting traffic for data polices

attaching users to the edge of the network

applying security policies

11. Which attribute does a router use to select the best path when two or more different routes to the same destination exist from two different routing protocols.

dual algorithm

metric

administrative distance

hop count

12. An administrator must turn off the Cisco Discovery Protocol on the port configured with address last usable address in the 10.0.0.0/30 subnet. Which command set meets the requirement?

interface gi0/1 no cdp enable

interface gi0/1 clear cdp table

interface gi0/0 no cdp advertise-v2

interface gi0/0 no cdp run

13. On workstations running Microsoft Windows, which protocol provides the default gateway for the device?

DHCP

STP

SNMP

DNS

14. Which WAN topology provides a combination of simplicity quality, and availability?

partial mesh

full mesh

point-to-point

hub-and-spoke

15. Which two components are needed to create an Ansible script that configures a VLAN on a switch?

cookbook

task

playbook

model

recipe

16. Which command automatically generates an IPv6 address from a specified IPv6 prefix and MAC address of an interface?

ipv6 address dhcp

ipv6 address 2001:DB8:5:112::/64 eui-64

ipv6 address autoconfig

ipv6 address 2001:DB8:5:112::2/64 link-local

17. What is a function of Wireless LAN Controller?

register with a single access point that controls traffic between wired and wireless endpoints.

use SSIDs to distinguish between wireless clients.

send LWAPP packets to access points.

monitor activity on wireless and wired LANs

18. What is the function of a hub-and-spoke WAN topology?

allows access restrictions to be implemented between subscriber sites.

provides direct connections between subscribers

supports Layer 2 VPNs

supports application optimization

19. Which two protocols are supported on service-port interfaces? (Choose two.)

RADIUS

TACACS+

SCP

Telnet

SSH

20. Which network action occurs within the data plane?

compare the destination IP address to the IP routing table.

run routing protocols (OSPF, EIGRP, RIP, BGP)

make a configuration change from an incoming NETCONF RPC

reply to an incoming ICMP echo request

Curriculum

CCNA Certification Training

First week

The second week

End