JK0-019 CompTIA E2C Network + Certification Exam Set 8

Which of the following describes the amount of time it takes for a packet to transmit from one switch to another? 


Options are :

  • Hop count
  • MTU limit
  • Distance vector
  • Latency (Correct)

Answer : Latency

A network technician is setting up a wireless access point that would only allow a certain laptop to be able to access the WAP. By using ACL, which of the following would be filtered to ensure only the authorized laptop can access the WAP? 


Options are :

  • MAC address filtering (Correct)
  • Computer name filtering
  • IP address filtering
  • NetBIOS name filtering

Answer : MAC address filtering

Which of the following is the BEST way to prevent new users from connecting to a wireless access point, but still allow already connected users to continue to connect? 


Options are :

  • Reduce the signal strength to 0 percent.
  • Create a MAC filter containing the current users. (Correct)
  • Turn off SSID broadcast.
  • Change the encryption type to AES 256-bit for current users.

Answer : Create a MAC filter containing the current users.

Which of the following DNS records must be queried to resolve the IPv6 address of a website? 


Options are :

  • A
  • CNAME
  • AAAA (Correct)
  • PTR

Answer : AAAA

Which of the following OSI model layers is used to order packets which may have arrived out of order?   


Options are :

  • Network
  • Presentation
  • Session
  • Transport (Correct)

Answer : Transport

Which of the following is a terminal emulator used to manage a network device? 


Options are :

  • IPS
  • IDS
  • PuTTY (Correct)
  • VPN

Answer : PuTTY

The network support team is constantly getting calls from users in a specific area of an office building. The users are able to connect to the office wireless network, but they sometimes disconnect or experience very slow download speeds. Which of the following is MOST likely the problem?   


Options are :

  • Incorrect IP address or subnet mask
  • Incorrect encryption scheme
  • Incorrect service set identifier
  • Low signal strength or interference (Correct)

Answer : Low signal strength or interference

Which of the following differentiates a layer 3 switch from a layer 2 switch? 


Options are :

  • Routing (Correct)
  • Bridging
  • Repeating
  • Switching

Answer : Routing

Which of the following is used to describe trunking VLANs on a network?   


Options are :

  • 802.1x
  • 802.11i
  • 802.11a
  • 802.1q (Correct)

Answer : 802.1q

A user reports lack of network connectivity on their desktop. Which of the following is the FIRST step of the network troubleshooting methodology that the technician should perform? 


Options are :

  • Question the user to determine if anything has changed. (Correct)
  • Test the theory to determine the cause.
  • Establish a theory of probable cause by questioning the obvious
  • Establish a plan of action to resolve the problem.

Answer : Question the user to determine if anything has changed.

A technician needs multiple networks, high speeds, and redundancy on a system. Which of the following configurations should be considered for these requirements? (Select TWO).

A. Routing table

B. Next hop

C. Port mirroring

D. Port monitoring

E. VLANs 


Options are :

  • A,D
  • A,B
  • C,E (Correct)
  • C,D

Answer : C,E

A customer is having problems connecting to a wireless network in a shared office space. The customer can detect several other wireless network signals. All of the wireless networks have different SSIDs but several are using the same encryption type. Which of the following should be configured on the customers wireless network to improve connectivity to the wireless network?   


Options are :

  • Change the SSID to match other wireless networks for increased throughput.
  • Change the encryption type to a different mechanism to avoid interference.
  • Change the WAP to a different manufacturer than the other wireless networks.
  • Change the channel to a different channel than the other wireless networks. (Correct)

Answer : Change the channel to a different channel than the other wireless networks.

Which of the following connectors is usable in SFP modules?   


Options are :

  • LC (Correct)
  • SX
  • LX
  • ST

Answer : LC

The BEST way to determine the next hop of a packet is to check the: 


Options are :

  • convergence.
  • link state.
  • routing table. (Correct)
  • routing metrics.

Answer : routing table.

During a disaster recovery test, several billing representatives need to be temporarily setup to take  payments from customers. It has been determined that this will need to occur over a wireless network, with security being enforced where possible. Which of the following configurations should be used in this scenario? 


Options are :

  • WPA2, SSID enabled, and 802.11n.
  • WEP, SSID disabled, and 802.11g.
  • WEP, SSID enabled, and 802.11b.
  • WPA2, SSID disabled, and 802.11a. (Correct)

Answer : WPA2, SSID disabled, and 802.11a.

Which of the following performance optimization techniques would be MOST beneficial for a network-wide VoIP setup? (Select TWO).

A. Proxy server 

B. Traffic shaping

C. Caching engines

D. Load balancing

E. Quality of service 


Options are :

  • B,E (Correct)
  • C,D
  • A,D
  • A,B

Answer : B,E

A user reports intermittent network connectivity from their desktop PC. A technician determines the cause to be a bad wall jack and fixes the jack. Which of the following should the technician do NEXT? 


Options are :

  • Test the theory
  • Question the user
  • Verify functionality (Correct)
  • Document the outcome

Answer : Verify functionality

A number of remote users have reported being unable to securely log on to the companys network. Upon speaking with some of the employees experiencing the issue, no changes were made to their configurations, usernames, or passwords. The technician establishes a theory that one of the VPN concentrators may be down. Which of the following should the technician do NEXT? 


Options are :

  • Continue to speak to users, questioning if changes have been made
  • Escalate the problem to management
  • Test access to the concentrator to confirm the status (Correct)
  • Plan to reboot the concentrator as the potential solution

Answer : Test access to the concentrator to confirm the status

A network administrator is tasked with deploying a company-wide wireless system which allows for accurate tracking of employees wireless device locations via WAP triangulation. Which of the following is the MOST important aspect of the deployment? 


Options are :

  • WAP placement (Correct)
  • Transmission power
  • TX/RX channel
  • Signal strength

Answer : WAP placement

A customer has requested a solution using multiple WAPs for wireless access. Which of the following should be different on each WAP to prevent wireless problems?   


Options are :

  • Channels (Correct)
  • Antenna types
  • Firewalls
  • VLANs

Answer : Channels

A technician has installed a group of layer 2 switches with multiple VLANs. The VLANs cannot talk to each other. Which of the following network devices could correct this problem? (Select TWO).

A. Hub

B. DNS server

C. DHCP server

D. Layer 3 switch

E. Router 


Options are :

  • C,D
  • A,B
  • B,D
  • D,E (Correct)

Answer : D,E

Which of the following standards can operate at either 20MHz or 40MHz channel spacing? 


Options are :

  • 802.11a
  • 802.11n (Correct)
  • 802.11b
  • 802.11g

Answer : 802.11n

A technician has been tasked to set-up a managed switch. Which of the following will the technician need to accomplish this task?   


Options are :

  • Switch serial number
  • IP address (Correct)
  • VLAN tag
  • Loopback plug

Answer : IP address

A company pays a third-party vendor a monthly fee to connect to offsite servers and desktops. Users connect to the desktops via RDP, and administrators connect to the servers via VPN. Servers and desktops are hardware-based. Which of the following is the third-party providing? 


Options are :

  • SaaS
  • Virtual desktops
  • NaaS (Correct)
  • Virtual servers

Answer : NaaS

The network technician has recently implemented VLANs on the company network. Ever since this implementation, sections within the company can no longer share information. While troubleshooting, the technician realizes they are unable to ping a device from another VLAN. Which of the following needs to be configured to fix this problem? 


Options are :

  • Configure 802.1q trunks on the switches (Correct)
  • Configure 802.1x trunks on the switches
  • Add host entries on the users computer
  • Clear the ARP table

Answer : Configure 802.1q trunks on the switches

Which of the following is the unit used to transfer information at Layer 2 of the OSI model?   


Options are :

  • Session
  • Frame (Correct)
  • Socket
  • Packet

Answer : Frame

Which of the following is the BEST network configuration to use if the technician wants to send all outgoing traffic to the external router?   


Options are :

  • Trunking
  • SNMP strings
  • ACLs
  • Static routing (Correct)

Answer : Static routing

After the technician has established a theory of probable cause of a user reported problem, which of the following should the technician do NEXT in the troubleshooting process?   


Options are :

  • Implement the solution to the problem.
  • Establish a plan of action. (Correct)
  • Implement preventative measures.
  • Identify the problem.

Answer : Establish a plan of action.

A user reports that they are unable to connect to the network. Upon further investigation, a technician notices that the user has an IP address/subnet mask combination of 192.168.204.255/24. The default gateway for the network is 192.168.204.254. Which of the following could the users IP address be changed to so that they could connect to the network?   


Options are :

  • 192.168.204.112/24 (Correct)
  • 192.168.204.0/27
  • 192.168.204.254/24
  • 192.168.204.1/27

Answer : 192.168.204.112/24

Which of the following reside at a minimum of Layer 3 of the OSI model? (Select TWO).

A. Hub

B. Switch

C. MAC address

D. IP address

E. Router 


Options are :

  • A,C
  • A,B
  • C,D
  • D,E (Correct)

Answer : D,E

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