Comp1

Question 1

A systems administrator needs to improve WiFi performance in a densely populated office tower and use the latest standard. There is a mix of devices that use 2.4 GHz and 5 GHz. Which of the following should the  systems administrator select to meet this requirement?

Accepted Answer

802.11ax

Answer

802.11ac

Answer

802.11g

Answer

802.11n

Question 2

Which of the following would be BEST to use to detect a MAC spoofing attack?

Accepted Answer

Reverse Address Resolution Protocol

Answer

Internet Control Message Protocol

Answer

Dynamic Host Configuration Protocol

Answer

Internet Message Access Protocol

Question 3

A technician receives feedback that some users are experiencing high amounts of jitter while using the wireless network. While troubleshooting the network, the technician uses the ping command with the IP address of the default gateway and verifies large variations in latency. The technician thinks the issue may be interference from other networks and non-802.11 devices. Which of the following tools should the technician use to troubleshoot the issue?

Accepted Answer

Spectrum analyzer

Answer

NetFlow analyzer

Answer

Bandwidth analyzer

Answer

Protocol analyzer

Question 4

Wireless users are reporting intermittent internet connectivity. Connectivity is restored when the users disconnect and reconnect, utilizing the web authentication process each time. The network administrator can see the devices connected to the APs at all times. Which of the following steps will MOST likely determine the cause of the issue?

Accepted Answer

Verify the session time-out configuration on the captive portal settings

Answer

Check for encryption protocol mismatch on the client's wireless settings

Answer

Confirm that a valid passphrase is being used during the web authentication

Answer

Investigate for a client's disassociation caused by an evil twin AP

Question 5

A network administrator walks into a datacenter and notices an unknown person is following closely. The administrator stops and directs the person to the security desk. Which of the following attacks did the network administrator prevent?

Accepted Answer

Tailgating

Answer

Evil twin

Answer

Piggybacking

Answer

Shoulder surfing

Question 6

SIMULATION -
You have been tasked with setting up a wireless network in an office. The network will consist of 3 Access Points and a single switch. The network must meet the following parameters:
✑ The SSIDs need to be configured as CorpNet with a key of S3cr3t!
✑ The wireless signals should not interfere with each other
✑ The subnet the Access Points and switch are on should only support 30 devices maximum
✑ The Access Points should be configured to only support TKIP clients at a maximum speed

INSTRUCTONS -
Click on the wireless devices and review their information and adjust the settings of the access points to meet the given requirements.
If at any time you would like to bring back the initial state of the simulation, please click the Reset All button.

Accepted Answer

Resposta é interativa

Question 7

A network is experiencing a number of CRC errors during normal network communication. At which of the following layers of the OSI model will the administrator MOST likely start to troubleshoot?

Accepted Answer

Layer 1

Answer

Layer 2

Answer

Layer 3

Answer

Layer 4

Answer

Layer 5

Answer

Layer 6

Answer

Layer 7

Question 8

A client recently added 100 users who are using VMs. All users have since reported slow or unresponsive desktops. Reports show minimal network congestion, zero packet loss, and acceptable packet delay. Which of the following metrics will MOST accurately show the underlying performance issues? (Choose two.)

Accepted Answer

CPU usage

Accepted Answer

Memory

Answer

Temperature

Answer

Bandwidth

Answer

Latency

Answer

Jitter

Question 9

Client devices cannot enter a network, and the network administrator determines the DHCP scope is exhausted. The administrator wants to avoid creating a new DHCP pool. Which of the following can the administrator perform to resolve the issue?

Accepted Answer

Reduce the lease time

Answer

Install load balancers

Answer

Install more switches

Answer

Decrease the number of VLANs

Question 10

An administrator is writing a script to periodically log the IPv6 and MAC addresses of all the devices on a network segment. Which of the following switch features will MOST likely be used to assist with this task?

Accepted Answer

Neighbor Discovery Protocol

Answer

Spanning Tree Protocol

Answer

Link Aggregation Control Protocol

Answer

Address Resolution Protocol

Question 11

The network administrator is informed that a user's email password is frequently hacked by brute-force programs. Which of the following policies should the network administrator implements to BEST mitigate this issue? (Choose two.)

Accepted Answer

Two-factor authentication

Accepted Answer

Complex passwords

Answer

Captive portal

Answer

Geofencing

Answer

Role-based access

Answer

Explicit deny

Question 12

A network engineer is investigating reports of poor network performance. Upon reviewing a device
configuration, the engineer finds that duplex settings are mismatched on both ends. Which of the following
would be the MOST likely result of this finding?

Accepted Answer

Increased CRC errors

Answer

Increased giants and runts

Answer

Increased switching loops

Answer

Increased device temperature

Question 13

A client recently added 100 users who are using VMs. All users have since reported slow or unresponsive
desktops. Reports show minimal network congestion, zero packet loss, and acceptable packet delay. Which of
the following metrics will MOST accurately show the underlying performance issues? (Choose two.)

Accepted Answer

CPU usage

Accepted Answer

Memory

Answer

Temperature

Answer

Bandwidth

Answer

Latency

Answer

Jitter

Question 14

According to troubleshooting methodology, which of the following should the technician do NEXT after
determining the most likely probable cause of an issue?

Accepted Answer

Establish a plan of action to resolve the issue and identify potential effects

Answer

Verify full system functionality and, if applicable, implement preventive measures

Answer

Implement the solution or escalate as necessary

Answer

Test the theory to determine the cause

Question 15

Which of the following systems would MOST likely be found in a screened subnet?

Accepted Answer

FTP

Answer

RADIUS

Answer

SQL

Answer

LDAP

Question 16

Which of the following is used to prioritize Internet usage per application and per user on the network?

Accepted Answer

Bandwidth management

Answer

Load balance routing

Answer

Border Gateway Protocol

Answer

Administrative distance

Question 17

A user tries to ping 192.168.1.100 from the command prompt on the 192.168.2.101 network but gets the
following response: U.U.U.U. Which of the following needs to be configured for these networks to reach each
other?

Accepted Answer

Default gateway

Answer

Network address translation

Answer

Loopback

Answer

Routing protocol

Question 18

An engineer is configuring redundant network links between switches. Which of the following should the
engineer enable to prevent network stability issues?

Accepted Answer

STP

Answer

802.1Q

Answer

Flow control

Answer

CSMA/CD

Question 19

The network administrator is informed that a user’s email password is frequently hacked by brute-force
programs. Which of the following policies should the network administrator implements to BEST mitigate this issue? (Choose two.)

Accepted Answer

Two-factor authentication

Accepted Answer

Complex passwords

Answer

Captive portal

Answer

Geofencing

Answer

Role-based access

Answer

Explicit deny

Question 20

Which of the following ports is commonly used by VoIP phones?

Accepted Answer

5060

Answer

20

Answer

143

Answer

445

Question 21

Which of the following BEST describes a network appliance that warns of unapproved devices that are
accessing the network?

Accepted Answer

IDS

Answer

Firewall

Answer

AP

Answer

Proxy server

Question 22

A company built a new building at its headquarters location. The new building is connected to the company’s
LAN via fiber-optic cable. Multiple users in the new building are unable to access the company’s intranet site via their web browser, but they are able to access internet sites. Which of the following describes how the network administrator can resolve this issue?

Accepted Answer

Correct the DNS server entries in the DHCP scope

Answer

Correct the external firewall gateway address

Answer

Correct the NTP server settings on the clients

Answer

Correct a TFTP Issue on the company’s server

Question 23

A branch of a company recently switched to a new ISP. The network engineer was given a new IP range to
assign. The ISP assigned 196.26.4.0/26, and the branch gateway router now has the following configurations
on the interface that peers to the ISP:

Accepted Answer

The incorrect IP address was configured

Answer

The incorrect subnet mask was configured

Answer

The incorrect gateway was configured

Answer

The incorrect interface was configured

Question 24

Which of the following provides redundancy on a file server to ensure the server is still connected to a LAN
even in the event of a port failure on a switch?

Accepted Answer

NIC teaming

Answer

Load balancer

Answer

RAID array

Answer

PDUs

Question 25

A fiber link connecting two campus networks is broken. Which of the following tools should an engineer use
to detect the exact break point of the fiber link?

Accepted Answer

OTDR

Answer

Tone generator

Answer

Fusion splicer

Answer

Cable tester

Answer

PoE injector

Question 26

A network technician is manually configuring the network settings for a new device and is told the network
block is 192.168.0.0/20. Which of the following subnets should the technician use?

Accepted Answer

255.255.240.0

Answer

255.255.128.0

Answer

255.255.192.0

Answer

255.255.248.0

Question 27

A technician wants to deploy a new wireless network that comprises 30 WAPs installed throughout a
three-story office building. All the APs will broadcast the same SSID for client access. Which of the following
BEST describes this deployment?

Accepted Answer

Extended service set

Answer

Basic service set

Answer

Unified service set

Answer

Independent basic service set

Question 28

A technician is installing a new fiber connection to a network device in a datacenter. The connection from the device to the switch also traverses a patch panel connection. The chain of connections is in the following order:
Device
LC/LC patch cable
Patch panel
Cross-connect fiber cable
Patch panel
LC/LC patch cable
Switch
The connection is not working. The technician has changed both patch cables with known working patch
cables. The device had been tested and was working properly before being installed. Which of the following is the MOST likely cause of the issue?

Accepted Answer

TX/RX is reversed

Answer

An incorrect cable was used

Answer

The device failed during installation

Answer

Attenuation is occurring

Question 29

An attacker is attempting to find the password to a network by inputting common words and phrases in
plaintext to the password prompt. Which of the following attack types BEST describes this action?

Accepted Answer

Dictionary attack

Answer

Pass-the-hash attack

Answer

Rainbow table attack

Answer

Brute-force attack

Question 30

A network administrator is configuring a load balancer for two systems. Which of the following must the
administrator configure to ensure connectivity during a failover?

Accepted Answer

VIP

Answer

NAT

Answer

APIPA

Answer

IPv6 tunneling

Answer

Broadcast IP

Question 31

A workstation is configured with the following network details:

Software on the workstation needs to send a query to the local subnet broadcast address. To which of the
following addresses should the software be configured to send the query?

Accepted Answer

10.1.2.31

Answer

10.1.2.0

Answer

10.1.2.1

Answer

10.1.2.23

Answer

10.1.2.255

Question 32

Which of the following devices would be used to manage a corporate WLAN?

Accepted Answer

A wireless controller

Answer

A wireless NAS

Answer

A wireless bridge

Answer

A wireless router

Question 33

A technician is deploying a new switch model and would like to add it to the existing network monitoring
software. The technician wants to know what metrics can be gathered from a given switch. Which of the
following should the technician utilize for the switch?

Accepted Answer

MIB

Answer

Trap

Answer

Syslog

Answer

Audit log

Question 34

Access to a datacenter should be individually recorded by a card reader even when multiple employees enter
the facility at the same time. Which of the following allows the enforcement of this policy?

Accepted Answer

Access control vestibules

Answer

Motion detection

Answer

Smart lockers

Answer

Cameras

Question 35

A network technician is installing new software on a Windows-based server in a different geographical location. Which of the following would be BEST for the technician to use to perform this task?

Accepted Answer

RDP

Answer

SSH

Answer

FTP

Answer

DNS

Question 36

A technician is assisting a user who cannot connect to a network resource. The technician first checks for a
link light. According to troubleshooting methodology, this is an example of:

Accepted Answer

using a bottom-to-top approach.

Answer

establishing a plan of action.

Answer

documenting a finding.

Answer

questioning the obvious.

Question 37

A network administrator is designing a new datacenter in a different region that will need to communicate to
the old datacenter with a secure connection. Which of the following access methods would provide the BEST
security for this new datacenter?

Accepted Answer

Site-to-site VPN

Answer

Virtual network computing

Answer

Secure Socket Shell

Answer

In-band connection

Question 38

An IT organization needs to optimize speeds for global content distribution and wants to reduce latency in
high-density user locations. Which of the following technologies BEST meets the organization’s
requirements?

Accepted Answer

Content delivery network

Answer

Load balancing

Answer

Geofencing

Answer

Public cloud

Answer

Infrastructure as a service

Question 39

A network device is configured to send critical events to a syslog server; however, the following alerts are not being received:
Severity 5 LINK-UPDOWN: Interface 1/1, changed state to down
Severity 5 LINK-UPDOWN: Interface 1/3, changed state to down
Which of the following describes the reason why the events are not being received?

Accepted Answer

The network device is not configured to log that level to the syslog server

Answer

The network device was down and could not send the event

Answer

The syslog server is not compatible with the network device

Answer

The syslog server did not have the correct MIB loaded to receive the message

Question 40

At which of the following OSI model layers would a technician find an IP header?

Accepted Answer

Layer 3

Answer

Layer 1

Answer

Layer 2

Answer

Layer 4

Question 41

A company hired a technician to find all the devices connected within a network. Which of the following
software tools would BEST assist the technician in completing this task?

Accepted Answer

IP scanner

Answer

Terminal emulator

Answer

NetFlow analyzer

Answer

Port scanner

Question 42

After the A record of a public website was updated, some visitors were unable to access the website. Which of
the following should be adjusted to address the issue?

Accepted Answer

TTL

Answer

MX

Answer

TXT

Answer

SOA

Question 43

Within the realm of network security, Zero Trust:

Accepted Answer

prevents attackers from moving laterally through a system

Answer

allows a server to communicate with outside networks without a firewall

Answer

block malicious software that is too new to be found in virus definitions

Answer

stops infected files from being downloaded via websites.

Question 44

A network administrator redesigned the positioning of the APs to create adjacent areas of wireless coverage. After project validation, some users still report poor connectivity when their devices maintain an association to a distanced AP. Which of the following should the network administrator check FIRST?

Accepted Answer

Validate the roaming settings on the APs and WLAN clients

Answer

Verify that the AP antenna type is correct for the new layout

Answer

Check to see if MU-MIMO was properly activated on the APs

Answer

Deactivate the 2.4GHz band on the APS

Question 45

A network technician is reviewing the interface counters on a router interface. The technician is attempting to confirm a cable issue. Given the following information:

Which of the following metrics confirms there is a cabling issue?

Accepted Answer

CRCs

Answer

Last cleared

Answer

Number of packets output

Answer

Giants

Answer

Multicasts

Question 46

Which of the following transceiver types can support up to 40Gbps?

Accepted Answer

QSFP+

Answer

SFP+

Answer

QSFP

Answer

SFP

Question 47

A technician is writing documentation regarding a company’s server farm. The technician needs to confirm the server name for all Linux servers. Which of the following commands should the technician run?

Accepted Answer

nslookup

Answer

ipconfig

Answer

arp

Answer

route

Question 48

A technician is configuring a network switch to be used in a publicly accessible location. Which of the
following should the technician configure on the switch to prevent unintended connections?

Accepted Answer

Port security

Answer

DHCP snooping

Answer

Geofencing

Answer

Secure SNMP

Question 49

Several WIFI users are reporting the inability to connect to the network. WLAN users on the guest network are able to access all network resources without any performance issues. The following table summarizes the findings after a site survey of the area in question:

Which of the following should a wireless technician do NEXT to troubleshoot this issue?

Accepted Answer

Reconfigure the channels to reduce overlap

Answer

Replace the omni antennas with directional antennas

Answer

Update the SSIDs on all the APs

Answer

Decrease power in AP 3 and AP 4

Question 50

A network technician needs to ensure outside users are unable to telnet into any of the servers at the
datacenter. Which of the following ports should be blocked when checking firewall configuration?

Accepted Answer

23

Answer

22

Answer

80

Answer

3389

Answer

8080

Question 51

A network administrator is installing a wireless network at a client’s office. Which of the following IEEE
802.11 standards would be BEST to use for multiple simultaneous client access?

Accepted Answer

CSMA/CA

Answer

CDMA

Answer

CSMA/CD

Answer

GSM

Question 52

A network engineer configured new firewalls with the correct configuration to be deployed to each remote
branch. Unneeded services were disabled, and all firewall rules were applied successfully. Which of the
following should the network engineer perform NEXT to ensure all the firewalls are hardened successfully?

Accepted Answer

Update the firewalls with current firmware and software

Answer

Ensure an implicit permit rule is enabled

Answer

Configure the log settings on the firewalls to the central syslog server

Answer

Use the same complex passwords on all firewalls

Question 53

A technician is installing a cable modem in a SOHO. Which of the following cable types will the technician
MOST likely use to connect a modem to the ISP?

Accepted Answer

Coaxial

Answer

Single-mode fiber

Answer

Cat 6e

Answer

Multimode fiber

Question 54

An administrator is writing a script to periodically log the IPv6 and MAC addresses of all the devices on a
network segment. Which of the following switch features will MOST likely be used to assist with this task?

Accepted Answer

Neighbor Discovery Protocol

Answer

Spanning Tree Protocol

Answer

Link Aggregation Control Protocol

Answer

Address Resolution Protocol

Question 55

An IT director is setting up new disaster and HA policies for a company. Limited downtime is critical to
operations. To meet corporate requirements, the director set up two different datacenters across the country that will stay current on data and applications. In the event of an outage, the company can immediately switch from one datacenter to another. Which of the following does this BEST describe?

Accepted Answer

A hot site

Answer

A warm site

Answer

Data mirroring

Answer

Multipathing

Answer

Load balancing

Question 56

Which of the following is the LARGEST MTU for a standard Ethernet frame?

Accepted Answer

1500

Answer

1452

Answer

1492

Answer

2304

Question 57

A network administrator is implementing OSPF on all of a company’s network devices. Which of the
following will MOST likely replace all the company’s hubs?

Accepted Answer

A Layer 3 switch

Answer

A proxy server

Answer

A NGFW

Answer

A WLAN controller

Question 58

Which of the following TCP ports is used by the Windows OS for file sharing?

Accepted Answer

445

Answer

53

Answer

389

Answer

1433

Question 59

Which of the following is the physical topology for an Ethernet LAN?

Accepted Answer

Star

Answer

Bus

Answer

Ring

Answer

Mesh

Question 60

A network engineer is investigating reports of poor network performance. Upon reviewing a report, the
engineer finds that jitter at the office is greater than 10ms on the only WAN connection available. Which of
the following would be MOST affected by this statistic?

Accepted Answer

A VoIP sales call with a customer

Answer

An in-office video call with a coworker

Answer

Routing table from the ISP

Answer

Firewall CPU processing time

Question 61

Which of the following DNS records works as an alias to another record?

Accepted Answer

CNAME

Answer

AAAA

Answer

MX

Answer

SOA

Question 62

Which of the following routing protocols is used to exchange route information between public autonomous
systems?

Accepted Answer

BGP

Answer

OSPF

Answer

EGRIP

Answer

RIP

Question 63

A systems administrator needs to improve WiFi performance in a densely populated office tower and use the latest standard. There is a mix of devices that use 2.4 GHz and 5 GHz. Which of the following should the
systems administrator select to meet this requirement?

Accepted Answer

802.11ax

Answer

802.11ac

Answer

802.11g

Answer

802.11n

Question 64

A network administrator needs to query the NSs for a remote application. Which of the following commands
would BEST help the administrator accomplish this task?

Accepted Answer

dig

Answer

arp

Answer

show interface

Answer

hostname

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