CompTIA JK0-019 Online Practice Questions and Exam Preparation

CompTIA JK0-019 Online Questions & Answers

• Question 191:

  A consultant has been hired to wire a simple small office of ten computers to a layer 2 Ethernet 100BaseT switch. Which of the following cabling will be needed for the installation?

  A. Multimode fiber
  B. RG-59 coaxial
  C. CAT6a
  D. CAT3
  C. CAT6a

• Question 192:

  Which of the following routing protocols can be utilized as both an IGP and EGP?

  A. EIGRP
  B. RIP
  C. IGRP
  D. RIPv2
  A. EIGRP

• Question 193:

  A network administrator notices that load balancing is not working properly on the web cluster as previously configured. In speaking with management, a change to the IP addressing scheme was made yesterday which possibly affected one member of the cluster. Due to the timing of the events, the administrator theorizes that this change caused the problem. Which of the following should the administrator do NEXT?

  A. Escalate to the management team
  B. Change the IP address back to its previous state
  C. Test the theory by analyzing logs
  D. Create a plan of action to present to management
  C. Test the theory by analyzing logs

• Question 194:

  A technician decides to upgrade a router before leaving for vacation. While away, users begin to report slow performance. Which of the following practices allows other technicians to quickly return the network to normal speeds?

  A. Change management
  B. Baselines
  C. Asset management
  D. Cable management
  A. Change management

  ---

  As soon as technician found a problem he generates a change management request to make changes to fast up the speed of router.

• Question 195:

  A technician is developing a shortcut sheet for the network to be able to assist in future troubleshooting scenarios. Which of the following should the network devices have to ease manageability efforts?

  A. MAC spoofing
  B. Dynamic IPs
  C. MAC filtering
  D. Static IPs
  D. Static IPs

  ---

  To give every user same ip every time because we have to document that ip slot we use static ip configuration.

• Question 196:

  Which of the following protocols uses port 3389 by default?

  A. RDP
  B. TFTP
  C. IMAP
  D. DNS
  A. RDP

• Question 197:

  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
  B. Traffic shaping
  E. Quality of service

  ---

  Traffic shaping retains excess packets in a queue and then schedules the excess for later transmission over increments of time. The result of traffic shaping is a smoothed packet output rate. QoS (Quality of Service) is a major issue in VOIP implementations. The issue is how to guarantee that packet traffic for a voice or other media connection will not be delayed or dropped due interference from other lower priority traffic.

  Things to consider are: Latency: Delay for packet delivery Jitter: Variations in delay of packet delivery Packet loss: Too much traffic in the network causes the network to drop packets Burstiness of Loss and Jitter: Loss and Discards (due to jitter) tend to occur in bursts

• Question 198:

  An administrator wants to translate an internal workstation name to an IP address. Which of the following commands would be used?

  A. ifconfig
  B. nslookup
  C. netstat
  D. ipconfig
  B. nslookup

• Question 199:

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

  A. Hop count
  B. Latency
  C. MTU limit D. Distance vector
  B. Latency

• Question 200:

  Which of the following is the definition of a DNS server?

  A. Hosts proprietary business applications
  B. Translates FQDN's to IP addresses
  C. Provides network IDS/IPS security
  D. Assigns IP addresses to network devices
  B. Translates FQDN's to IP addresses

  ---

  Domain Name System (DNS) is the name resolution protocol for TCP/IP networks, such as the Internet. Client computers query a DNS server to resolve memorable, alphanumeric DNS names to the IP addresses that computers use to communicate with each other.