JK0-019 CompTIA E2C Network + Certification Exam Set 3

Which of the following is MOST commonly implemented for remote access to UNIX systems? 


Options are :

  • RDP
  • SSH (Correct)
  • SSL
  • RSH

Answer : SSH

Which of the following can function in an unsecure mode?   


Options are :

  • SCP
  • SSL
  • SSH
  • SNMPv3 (Correct)

Answer : SNMPv3

Which of the following protocols are used to provide accurate time to network devices?   


Options are :

  • SMTP
  • NTP (Correct)
  • FTP
  • TLS

Answer : NTP

Using source port numbers as a way to keep track of connections is a characteristic of which of the following protocols?   


Options are :

  • PAT (Correct)
  • NAT
  • UDP
  • TCP

Answer : PAT

The address 6FFE:FFFF:0000:2F3B:04AC:00FF:FEBE:5C4A is an example of which of the following?   


Options are :

  • APIPA
  • IPv6 (Correct)
  • MAC
  • IPv4

Answer : IPv6

Standards such as JPEG and ASCII operate at which of the following OSI model layers? 


Options are :

  • Application
  • Presentation (Correct)
  • Data link
  • Session

Answer : Presentation

Which two layers of the OSI model make up the TCP/IP model Network Interface layer?   


Options are :

  • Physical and Data Link (Correct)
  • Session and Presentation
  • Transport and Session
  • Application and Transport

Answer : Physical and Data Link

The TCP/IP application layer contains which of the following OSI layers? 


Options are :

  • Layers 4, 7
  • Layers 1, 5, 6, 7
  • Layers 5, 6, 7 (Correct)
  • Layer 7

Answer : Layers 5, 6, 7

Which of the following is an example of a Class C address? 


Options are :

  • 192.168.1.105 (Correct)
  • 10.19.0.79
  • 176.96.1.222
  • 127.34.8.197

Answer : 192.168.1.105

Which of the following would be used to run an instance of a Layer 2 device within an application? 


Options are :

  • Virtual router
  • Virtual PBX
  • NaaS
  • Virtual switch (Correct)

Answer : Virtual switch

Which of the following services are affected by closing the default ports of 80 and 21 via ACL on a company router?   


Options are :

  • VPN and RDP traffic
  • FTP and basic Internet traffic (Correct)
  • DNS and TELNET traffic
  • HTTPS and IMAP traffic

Answer : FTP and basic Internet traffic

Which of the following is always true when a router selects a destination? 


Options are :

  • The shortest route is always selected.
  • The default gateway is selected over any other static or dynamic route
  • The most specific route is selected over the default gateway. (Correct)
  • A dynamic route is selected over a directly attached network.

Answer : The most specific route is selected over the default gateway.

Which of the following network devices builds a table of ports to MAC addresses to forward packets only to necessary ports?   


Options are :

  • Hub
  • Repeater
  • Router
  • Switch (Correct)

Answer : Switch

A network technician recently replaced a managed switch in an enterprise network with a new managed switch. Users on the switch can communicate with each other but now cannot access other network segments. Which of the following is the MOST likely reason that the users are unable to access any network segments? 


Options are :

  • The technician forgot to change the VTP mode on the new switch to server.
  • The newly installed switch is defective and must be returned.
  • The technician did not use the correct cable when trunking the new switch. (Correct)
  • The newly installed switch is using a different MAC address than the previous switch.

Answer : The technician did not use the correct cable when trunking the new switch.

Which of the following is the minimum subnet mask to allow 172.16.1.5 and 172.16.4.3 to be on the same subnet?   


Options are :

  • /24
  • /22
  • /21 (Correct)
  • /19

Answer : /21

Which of the following has the LEAST amount of collisions in a domain?   


Options are :

  • Switch (Correct)
  • Repeater
  • Hub
  • Bridge

Answer : Switch

A network technician visits a site that needs voice connectivity to the corporate office and installs four IP phones. The phone exchange resides at the telephone company. Which of the following technologies is being used? 


Options are :

  • Virtual desktop
  • Virtual PBX (Correct)
  • Virtual server
  • Virtual switch

Answer : Virtual PBX

At which layer of the OSI model do MAC addresses operate? 


Options are :

  • Data Link (Correct)
  • Network
  • Application
  • Physical

Answer : Data Link

At which of the following layers do IP addresses exist? 


Options are :

  • TCP/IP model Internet layer (Correct)
  • OSI model Physical layer
  • OSI model Data Link layer
  • TCP/IP model Transport layer

Answer : TCP/IP model Internet layer

Which of the following dynamic routing protocols selects routing paths based upon hop count? 


Options are :

  • RIP (Correct)
  • IGRP
  • OSPF
  • BGP

Answer : RIP

Users report that they are unable to access the production server with IP address 192.168.30.17. These users need to be provided access without changing any subnet to VLAN information. The VLANs configured on the network are listed below:

DepartmentVLAN #Subnet used

Marketing20192.168.20.0/28

Customer Service25192.168.20.64/28

Finance30192.168.30.0/28

WHSE35192.168.30.16/28

Sales40192.168.3.16/28

The users experiencing this issue need to be added to which of the following VLANs? 


Options are :

  • 30
  • 40
  • 35 (Correct)
  • 25

Answer : 35

Which of the following addresses is a class B private address?   


Options are :

  • 152.119.25.213
  • 132.216.14.184
  • 172.23.226.34 (Correct)
  • 162.17.43.22

Answer : 172.23.226.34

If a NIC does not have a link light, there is a failure at which of the following OSI layers? 


Options are :

  • Session
  • Physical (Correct)
  • Data link
  • Presentation

Answer : Physical

A customer has requested that a new piece of network equipment be installed so that the customer can have multiple subnets for each department, but allow network traffic from each department to reach one another without the use of a router. Which of the following network devices would satisfy this customers requirements? 


Options are :

  • Layer 3 switch (Correct)
  • Packet filter
  • Stateful firewall
  • Wireless bridge

Answer : Layer 3 switch

A technician finds that the network card is no longer functioning. At which of the following OSI layers is the problem occurring?   


Options are :

  • Layer 3
  • Layer 1 (Correct)
  • Layer 5
  • Layer 7

Answer : Layer 1

Which of the following network topologies would be separated into two networks if a client in the middle is removed or the cable is cut?   


Options are :

  • Ring
  • Bus (Correct)
  • Star
  • Mesh

Answer : Bus

A computer's DNS has bad cach records.which tools can be used to clear the DNS record.   


Options are :

  • tracert
  • nslookup
  • ipconfig (Correct)
  • netstat

Answer : ipconfig

Which of the following is a common physical network topology?   


Options are :

  • Star (Correct)
  • Straight
  • Cross-over
  • Loopback

Answer : Star

DHCP uses which of the following ports by default? 


Options are :

  • 21
  • 68 (Correct)
  • 443
  • 23

Answer : 68

A user is unable to open up websites on the Internet from a browser. The administrator determines that the workstation can ping its local gateway, but not the remote web server. At which of the following layers of the OSI model does the problem MOST likely exist? 


Options are :

  • Session
  • Network (Correct)
  • Physical
  • Data link

Answer : Network

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