CompTIA JK0-019 Online Practice Questions and Exam Preparation

CompTIA JK0-019 Online Questions & Answers

• Question 181:

  A workstation on the third floor of the company building is having connectivity issues. The NIC and patch cable have been tested and found to be working properly. Which of the following would MOST likely have the information the administrator would need to locate and test the remaining cabling and connections?

  A. Network maps
  B. Network baseline
  C. Asset management
  D. Change management
  A. Network maps

• Question 182:

  Which of the following can determine the last time an address lease was renewed on a network device?

  A. System log
  B. Packet sniffer
  C. Time domain reflectometer D. Stateful packet filter
  A. System log

• Question 183:

  A technician is reviewing the following company diagram to determine proper connectivity settings:

  

  Which of the following device configurations is out of specifications?

  A. LaptopC
  B. ServerE
  C. LaptopB
  D. ServerA
  E. PC1
  D. ServerA

  ---

  no legitimate Category 6e standard exists

• Question 184:

  Which of the following is an example of a CSMA/CD medium?

  A. WEP
  B. SONET
  C. Token ring
  D. Ethernet
  D. Ethernet

  ---

  CSMA/CD is a Media Access Control method in which a carrier sensing scheme is used and also a transmitting data station that detects another signal while transmitting a frame, stops transmitting that frame, transmits a jam signal, and then waits for a random time interval before trying to resend the frame

• Question 185:

  A user's computer is unable to access the Internet. Which of the following utilities can a technician use to determine if DNS is working?

  A. nbstat
  B. arp
  C. nslookup
  D. ipconfig
  C. nslookup

  ---

  nslookup is a network utility program used to obtain information about Internet servers. As its name suggests, the utility finds name server information for domains by querying DNS.

• Question 186:

  In order to limit the number of dynamic addresses of hosts on a network, which of the following can be implemented?

  A. Scope options
  B. Leases
  C. Reservations
  D. DNS suffixes
  A. Scope options

• Question 187:

  Which of the following connectors are MOST commonly used on a POTS line?

  A. RJ-45
  B. MTRJ
  C. DB-9
  D. RJ-11
  D. RJ-11

  ---

  The six-position plug and jack commonly used for telephone line connections may be used for RJ11, RJ14 or even RJ25, all of which are actually names of interface standards that use this physical connector. The RJ11 standard dictates a 2wire connection, while RJ14 uses a 4-wire configuration, and RJ25 uses all six wires. The RJ abbreviations, though, only pertain to the wiring of the jack (hence the name "registered jack"); it is commonplace but not strictly correct to refer to an unwired plug connector by any of these names. Typically you'll find the RJ-11 and RJ-14 on your Plain Old Telephone Service (POTS)

• Question 188:

  Which of the following network protocols is used for a secure command line interface for management of network devices?

  A. SSH
  B. TELNET
  C. IGMP
  D. HTTP
  A. SSH

  ---

  Secure Shell is a cryptographic network protocol for secure data communication, remote command-line login, remote command execution, and other secure network services between two networked computers.

• Question 189:

  A company has been just opened a new site in another country. Both sites share information across the WAN continuously throughout the business day. Which of the following should be implemented to ensure both sites are accessible?

  A. Traffic shaping
  B. QoS
  C. Caching engines
  D. High availability
  D. High availability

• Question 190:

  A company has a remote access VPN and wants to ensure that if a username and password are compromised, the corporate network will remain secure. Which of the following will allow the company to achieve its security goal?

  A. Posture assessment
  B. Kerberos
  C. TACACS+
  D. Two-factor authentication
  D. Two-factor authentication