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 switchto prevent unintended
connections?

A.

DHCP snooping

B.

Geofencing

C.

Port security

D.

Secure SNMP

Which of the following technologies allows traffic to be sent through two different ISPs to
increase performance?

A.

Fault tolerance

B.

Quality of service

C.

Load balancing

D.

Port aggregation

A network technician is investigating an IP phone that does not register in the VoIP system
Although it received an IP address, it did not receive the necessary DHCP options The
information that is needed for the registration is distributes by the OHCP scope All other IP
phones are working properly. Which of the following does the technician need to verify?

A.

VLAN mismatch

B.

Transceiver mismatch

C.

Latency

D.

DHCP exhaustion

A network engineer performs the following tasks to increaseserver bandwidth:
Connects two network cables from the server to a switch stack
Configure LACP on the switchports
Verifies the correct configurations on the switch interfaces
Which of the following needs to be configured on the server?

A.

Load balancing

B.

Multipathing

C.

NIC teaming

D.

Clustering

A user reports a weak signal when walking 20ft (61 m) away from the WAP in one
direction, but a strong signal when walking 20ft in the opposite direction The technician has
reviewed the configuration and confirmed the channel type is correct There is no jitter or
latency on the connection Which of the following would be the MOST likely cause of the
issue?

A.

Antenna type

B.

Power levels

C.

Frequency

D.

Encryption type

A technician needs to configure a Linux computer for network monitoring. The technician
has the following information:
Linux computer details:

After connecting the Linux computer to the mirror port on the switch, which of the following
commands should the technician run on the Linux computer?

A.

ifconfig ecth0 promisc

B.

ifconfig eth1 up

C.

ifconfig eth0 10.1.2.3

D.

ifconfig eth1 hw ether A1:B2:C3:D4:E5:F6

A network technician has multimode fiber optic cable available in an existing IDF. Which of
the following Ethernet standards should the technician use to connect the network switch to
the existing fiber?

A.

10GBaseT

B.

1000BaseT

C.

1000BaseSX

D.

1000BaseLX

Atechnician is installing a high-density wireless network and wants to use an available
frequency that supports the maximum number of channels to reduce interference. Which of
the following standard 802.11 frequency ranges should the technician look for while
reviewing WAP specifications?

A.

2.4GHz

B.

5GHz

C.

6GHz

D.

900MHz

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?

A.

Layer 1

B.

Layer 2

C.

Layer 3

D.

Layer 4

E.

Layer 5

F.

Layer 6

G.

Layer 7

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?

A.

NetFlow analyzer

B.

Bandwidth analyzer

C.

Protocol analyzer

D.

Spectrum analyzer

A workstation is configured with the following network details:

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

A.

10.1.2.0

B.

10.1.2.1

C.

10.1.2.23

D.

10.1.2.255

E.

10.1.2.31

A company that uses VoIP telephones is experiencing intermittent issues with one-way
audio and dropped conversations The manufacturer says the system will work if ping times
are less than 50ms. The company has recorded the following ping times:

Which of the following is MOST likely causing the issue?

A.

Attenuation

B.

Latency

C.

VLAN mismatch

D.

Jitter