JK0-019 CompTIA E2C Network + Certification Exam Set 1

Ann, a technician, installs a wireless router in a network closet in a large office. She then configures all workstations in various offices on that floor to use the wireless connection. Maximum connection speed at each workstation is 54 Mbps. Some users complain that their network connection is very slow. Which of the following is MOST likely the problem? 


Options are :

  • Users that cannot connect are configured on the wrong channel
  • Workstations were configured with the wrong connection speed on the wireless adapter.
  • Wireless network SSID is incorrect.
  • Users with a slow connection are too far away from the wireless router (Correct)

Answer : Users with a slow connection are too far away from the wireless router

If a technician does not assign an IP address to a device, the DHCP server will assign the device a:   


Options are :

  • dynamic IP address. (Correct)
  • reservation.
  • static IP address.
  • MAC address.

Answer : dynamic IP address.

A company is looking for the simplest solution to help prioritize VoIP traffic on its congested network. Which of the following would BEST accomplish this? 


Options are :

  • Caching engines
  • QoS (Correct)
  • Load balancing
  • MPLS

Answer : QoS

A network administrator is adding 24 - 802.3af class 2 VoIP phones and needs to purchase a single PoE switch to power the phones. Which of the following is the MINIMUM PoE dedicated wattage the switch supports to power all of the phones at full power?   


Options are :

  • 240W
  • 168W (Correct)
  • 96W
  • 369.6W

Answer : 168W

Which of the following commands will provide an administrator with the number of hops a packet takes from host to host? 


Options are :

  • ping
  • nslookup
  • route
  • traceroute (Correct)

Answer : traceroute

A technician has set up a wired network IP scheme with the following specifications: DHCP: 192.168.1.100-150 Gateway: 192.168.1.1 DNS: 192.168.1.1

Which of the following is represented by this addressing scheme?   


Options are :

  • Dynamic (Correct)
  • Static
  • Dynamic with static reservation
  • QoS

Answer : Dynamic

The wireless network inside a large training room has been saturated with client requests. Most of the client requests are coming from smartphones and laptops. The network technician has been tasked with increasing the performance of the wireless access point. Which of the following would BEST accomplish this?   


Options are :

  • Switch the channe
  • Change frequencies
  • Channel bonding (Correct)
  • Increase the signal

Answer : Channel bonding

An IP address assigned from a DHCP server is said to be which of the following?   


Options are :

  • Dynamic (Correct)
  • Static
  • Secure
  • Hybrid

Answer : Dynamic

A small business owner is setting up a SOHO office. The business owner needs one device that will allow for Internet access, trunk VLANs, translate multiple private IP addresses into public IP addresses, and filter packets. Which of the following network devices will allow for all functions? 


Options are :

  • A switch
  • A router (Correct)
  • A VPN concentrator
  • A firewall

Answer : A router

A user is trying to connect to the wireless network in the office but is unable to establish a consistent connection. The computer alternates connecting between several similarly configured access points. Which of the following would be the BEST way to address this issues? 


Options are :

  • Reconfigure each of the access points so that they broadcast different SSIDs.
  • Increase the pool in each of the access points to avoid running out of IPs.
  • Configure each access point to use a different method of encryption than the others.
  • Adjust the signal strength of the access points with minimal coverage overlap. (Correct)

Answer : Adjust the signal strength of the access points with minimal coverage overlap.

Which of the following is needed when using WPA2-Enterprise wireless encryption? 


Options are :

  • IPSec
  • LDAP
  • RADIUS (Correct)
  • TFTP

Answer : RADIUS

An administrator has set up a NIPS and connected it to the same switch as the internal firewall interface and the internal router. The device, however, only detects traffic from itself to the firewall or router. Which of the following explains why additional corporate traffic cannot be detected? 


Options are :

  • The spanning tree protocol is preventing the traffic
  • The traffic is in a classless IP range and not classful IP range.
  • Port Mirroring is set up incorrectly (Correct)
  • The switch needs to be a layer 3 switch.

Answer : Port Mirroring is set up incorrectly

A company has recently allowed its employees to telecommute two days a week. The employees MUST have a minimum of 1Mbps non-shared connection to the Internet. Which of the following MUST the employees have at their home in order to connect to the Internet?   


Options are :

  • Dial-up networking
  • DSL (Correct)
  • Cable modem
  • ISDN

Answer : DSL

A technician has received a trouble ticket from a user who has intermittent wireless access. Moving the computer farther from the WAP results in a more stable connection. Which of the following is MOST likely the cause of this instability?   


Options are :

  • Wrong encryption type
  • Signal bounce (Correct)
  • SSID mismatch
  • Incorrect channel

Answer : Signal bounce

Which of the following performance benefits would multiple domain controllers BEST provide? 


Options are :

  • Proxy server
  • Fault tolerance (Correct)
  • Quality of service
  • Caching engine

Answer : Fault tolerance

Which of the following is the reason why a company’s network may contain a DHCP server? 


Options are :

  • To assign IP addresses to devices on the network (Correct)
  • To provide POP3 and IMAP email functionality
  • To allow secure remote access
  • To convert IP addresses to fully qualified domain names

Answer : To assign IP addresses to devices on the network

A technician has spent most of the day replacing a server running DHCP. Some of the users have begun to call the help desk stating that Internet connection stopped working even after rebooting. Upon investigation, the users’ PCs with issues all have IP addresses that start with 169.254.x.x. The technician completes the replacement and powers on the new DHCP server. Which of the following is the BEST way to provide the PCs with issues a new IP address? 


Options are :

  • Statically assign a legitimate IP address, and then set the PCs’ NICs to DHCP
  • Wait five minutes until the PC resends a DHCP request (Correct)
  • Run netstat on each PC and then reboot into safe mode
  • Inform each user to replace 169.254 with 192.168

Answer : Wait five minutes until the PC resends a DHCP request

The DHCP server leases IP addresses 10.162.233.158 to WBAC11 for a period of 14 days. At which of the following times would WBAC11 send an initial request to the DHCP server to renew the IP address lease?   


Options are :

  • Day 10
  • Day 8 (Correct)
  • Day 4
  • Day 6

Answer : Day 8

A client has just leased a new office space in a busy commercial building and would like to install a wireless network. Several other tenants are on the same floor. Multiple wireless networks are present in the building. Which of the following can be changed on the client’s wireless network to help ensure that interference from other wireless networks is at a minimum?   


Options are :

  • Antenna types
  • Channel selection (Correct)
  • WPA encryption key selection
  • Disable SSID

Answer : Channel selection

A new WAP is configured to only use 802.11g with SSID broadcasts enabled. The encryption is set to WPA and the key is given to the user. A user near the WAP is using a laptop equipped with a 5GHz wireless card and is not able to see the SSID. Which of the following is the problem? 


Options are :

  • Incorrect encryption type
  • Latency
  • EUI-64
  • Incompatible hardware (Correct)

Answer : Incompatible hardware

A user moves from one office to another. When the user logs onto their computer, it has local access to shared drives but no Internet access. A technician determines that the computer has an IP address in the wrong subnet. Which of the following is MOST likely the cause?   


Options are :

  • MTU mismatch
  • Hijacked HOSTS file
  • Incorrect VLAN (Correct)
  • Missing routes

Answer : Incorrect VLAN

A Linux-based workstation is unable to connect to an IP printer on the same network segment. The printer IP address settings have been verified. How would a network technician verify IP address settings on the Linux-based workstation? 


Options are :

  • Run the ifconfig command on the workstation. (Correct)
  • Run the nslookup command on the workstation.
  • Run the dig command on the workstation.
  • Run the ipconfig command on the workstation

Answer : Run the ifconfig command on the workstation.

Which of the following antenna types has a flat circular radiation pattern?   


Options are :

  • Omni (Correct)
  • Patch
  • Diversity
  • Yagi

Answer : Omni

A technician has been dispatched to investigate connectivity problems of a recently renovated office. The technician has found that the cubicles were wired so that the network cables were run inside the conduit with the electrical cabling. Which of the following would MOST likely resolve the connectivity issue?   


Options are :

  • Re-run the network cabling so that they are 12 inches or more away from the electrical lines (Correct)
  • Power-cycle the computers and switches to re-establish the network connection.
  • Re-run the network cabling through the ceiling alongside the lights to prevent interference.
  • Test the wiring in the network jacks for faults using a cable verifier.

Answer : Re-run the network cabling so that they are 12 inches or more away from the electrical lines

A consultant is installing new WAPs for an office using wall mounts. Which of the following is the BEST location for the new boxes for signal strength and coverage? 


Options are :

  • Above the suspended ceiling with antennas positioned downward.
  • Close to the suspended ceiling, but not above. (Correct)
  • Close to the floor level to allow the signal to traverse the floor laterally.
  • Above the suspended ceiling with antennas positioned upward.

Answer : Close to the suspended ceiling, but not above.

Which of the following protocols is MOST commonly associated with VoIP?   


Options are :

  • HTTPS
  • SCP
  • SIP (Correct)
  • LDAP

Answer : SIP

A technician is setting up a wireless access point and wants to keep it as secure as possible. Which of the following settings should be configured for security purposes? (Select TWO).

A. Channel

B. Encryption

C. Diversity

D. SSID broadcast

E. Frequency   


Options are :

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

Answer : B,D

A network administrator needs to deploy seven equally spaced WAPs along an underground tunnel. Which of the following is the BEST channel design to avoid interference? 


Options are :

  • 1, 6, 11, 1, 1, 6, 11
  • 1, 11, 1, 11, 1, 11, 1
  • 11, 1, 6, 11, 1, 6, 11 (Correct)
  • 1, 3, 5, 7, 9, 11, 1

Answer : 11, 1, 6, 11, 1, 6, 11

A network technician is designing a SOHO environment where cost is a consideration. The requirements include access to the Internet and access to the guest house which is 100 feet away. The location of the Internet modem is located in the main house. Which of the following is the BEST option to accomplish these requirements?   


Options are :

  • Use a combined Internet/router/wireless device in the main house and a wireless access point in the guest house. (Correct)
  • Use two combined Internet/router/wireless devices, one in each house.
  • Use a single combined Internet/router/wireless device at the guest house.
  • Use a Layer 3 switch in the main house and a combined Internet/router/wireless device in the guest house.

Answer : Use a combined Internet/router/wireless device in the main house and a wireless access point in the guest house.

A technician is configuring a new DSL router. The technician can communicate with the LAN, but  not the WAN. Which of the following is the MOST likely cause? 


Options are :

  • Wrong gateway (Correct)
  • Switching loop
  • Duplicate IP addresses
  • Bad GBIC

Answer : Wrong gateway

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