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Which of the following can be configured to restrict specific ports and IP addresses from accessing the
internal network? (Select TWO).
A. Layer 2 switch
B. MAC address filtering
D. IIS server
E. Port scanner
Which of the following authentication solutions also provides AAA and uses TCP?
When the use of a smart card, pin number, and pass phrase is required to login to a system, which of the
following types of authentication is being used?
A. Single sign on
C. Two factor authentication
D. Multi-factor authentication
Which of the following would be used to test out the security of a specific network by allowing it to receive
C. Vulnerability scanner
D. Network based IDS
The protocols that use a three way handshake to transfer information can be found within which layer of
the OSI model?
A. Layer 2
B. Layer 3
C. Layer 4
D. Layer 5
Which of the following metrics indentifies the number of connections that is between two devices?
A. Hop count
The network technician is troubleshooting a network issue by implementing a new security device. After
installing and configuring the device, which of the following steps should the technician take NEXT?
A. Verify full system functionality.
B. Identify the main problem and question the user.
C. Document their findings, actions, and outcomes.
D. Escalate the issue to upper management.
Which of the following protocols is commonly used for VoIP technology?
A network technician is troubleshooting a problem and has just established a plan of action to resolve the
problem. Which of the following is the NEXT step in the troubleshooting methodology?
A. Verify full system functionality and if applicable implement preventative measures.
B. Implement the solution or escalate as necessary.
C. Document findings, actions, and outcomes.
D. Establish a theory of probable cause (e.g. question the obvious).
Which of the following ports is the default telnet port?
A bridge handles frames at which of the following layers of the OSI model?
D. Data Link
A company is about to install a second network connection with a new ISP. Which of the following routing
protocols is the BEST choice?
Which of the following layers of the OSI model maps to the Network Interface layer of the TCP stack?
C. Data Link
A network technician is attempting to map a FQDN to an internal server at the address of 10.0.0.15 without
NAT/PAT. Which of the following is the reason this will ultimately not work?
A. This is a private address which cannot be seen by external users.
B. The address does not have the appropriate subnet mask assigned.
C. This is a public address which can only be seen by internal users.
D. This is a private address which can only be seen by external users.
A network technician blocks access to ports 25, 110, and 143 on the firewall. Which of the following
application services will be blocked due to this?
A. Email sending and receiving
B. Domain Name Service
C. FTP access to external servers
D. Remote desktop access
Which of the following is the broadcast address for a network defined as 192.168.0.0/24?
Which of the following ports would have to be allowed through a firewall to allow SNMP traffic to pass on
its default port? (Select TWO).
A network technician, working with a large business of 500 employees, decides to configure a server to
handle IP addressing. Which of the following would BEST allow for this setup?
A. Address routing protocol
B. Port mirroring
C. Static addresses
D. DHCP addresses
A user is unable to access the company website on a laptop. A network technician verifies that the user
can access other Internet pages. According to network troubleshooting methodology, which of the following
steps should be taken NEXT?
A. Remotely connect to the user's laptop and review the network configuration settings.
B. Ping the web server from inside the network to ensure it is still up and running.
C. Check to make sure the company's website is accessible from the Internet.
D. Ensure the Ethernet cable is securely plugged into the user's laptop.
Which of the following is a reason to use dynamic DNS?
A. The host IP address is not listed in the firewall.
B. The host IP address is assigned by DHCP.
C. Static routes cannot be used on the host network.
D. A third-party certificate is being used.
A user can no longer access the accounting file share, but others are still able to access the share. Which
of the following would be the FIRST step in troubleshooting the issue?
A. Notify senior management of the issue.
B. Develop a probable cause theory.
C. Ask the user if anything has changed on the system.
D. Escalate the issue to the vendor.
Which of the following virtual components maintains a MAC-to-port forwarding table?
A. Virtual PBX
B. Virtual desktop
C. Virtual switch
D. Virtual server
Which TCP/IP model layer does the OSI model layer named 'session' respond to?
A network administrator is checking work on some new CAT5 LAN network cabling installed at an
organization. Multiple lines are receiving poor signals, and the administrator finds the lengths of the runs to
be sometimes over 350 feet (107 meters). Which of the following is the cause of the issue?
A. CAT5 cable runs over 330 feet (100 meters) need to utilize STP instead of UTP.
B. CAT5 cabling is limited to single-run lines of 330 feet (100 meters).
C. CAT5 cabling is limited to single-run lines of 250 feet (76 meters).
D. CAT5 cabling needs to have terminators installed at each end for runs over 330 feet (100 meters).
In an environment with STP disabled, which of the following is the MOST likely cause of the exponential
increase in repeated packets transferred through the network?
A. Incorrect subnet mask
B. Mismatched MTU
C. Switching loop
D. VLAN mismatch
Which of the following is the port number used by HTTP?
A technician is asked to run new cabling for an office that is 350 feet (107 meters) away from the
networking equipment. The type of cable being run is CAT6. The technician purchases and installs a 500
foot (152 meters) CAT6 cable, but after installation, notices a weak signal between the office and the
networking equipment. Which of the following would have been the BEST to install instead of the CAT6
A. Install two CAT6 cables with a repeater.
B. Install a 500 foot (152 meter) CAT5 cable.
C. Install a 500 foot (152 meter) CAT5e cable.
D. Install three CAT6 cables with a repeater.
Which of the following protocols should be used to monitor network performance?
Which of the following would a network engineer use to ensure a statically addressed device would receive
the same IP address, if it reverted to dynamic addressing?
A. DHCP option 3
B. DHCP exclusion
C. DHCP lease
D. DHCP reservation
An organization currently has CAT5e cabling throughout its office. The network technician is
troubleshooting a new CAT6 run that supports network traffic, but does not meet specification when tested
with a TDR. Which of the following is MOST likely the cause?
A. Improper grounding
B. TXRX reversed
C. Incorrect termination
D. Outdated NIC drivers
Which of the following services is used to create or update a client's DNS 'A' and 'PTR' records
A network technician would like to keep the IP address of the Human Resource department's server in the
same group of 100 DHCP IP addresses that are assigned to the Human Resource department's employee
workstations. Which of the following would BEST allow this and have the ability for the server to keep the
same IP address?
A. Implement a set of static IPs for the entire human resource department.
B. Use a DHCP reservation for the server IP address.
C. Use a small DHCP scope for the human resource department.
D. Connect the server to a router in the network closet on the same floor.
A network administrator is responding to a support ticket. The ticket does not have enough information to
determine the problem. Which of the following should the technician perform FIRST before responding to
A. Determine if anything has changed.
B. Test a theory to determine a cause.
C. Establish a plan of action to resolve the problem.
D. Escalate the problem if necessary.
A customer has a wireless network and has reported that the network traffic from the wireless access
points seems high compared to the limited number of wireless devices used. The customer believes that
other non-employees are using the wireless network to access the Internet. Which of the following could be
used to limit the access to the wireless network? (Select TWO).
A. WPA encryption
B. Changing wireless channels
C. MAC filtering
D. Changing wireless speed standards
E. SSID disable
A customer wants to network several computers within a large warehouse. The warehouse has one
computer at the very far end of the warehouse that is 170 meters (557 feet) from the network switch.
Which of the following cable types should a technician use for this computer?
A layer 3 switch can move packets between subnets based on which of the following criteria?
A. 802.1q tag
D. IP address
A customer wants to install a wireless network into a shared office space. There are several other wireless
networks from other companies that can be detected within the office space. Which of the following should
be configured on the customer's wireless network to differentiate it from other wireless network and still
provide the BEST performance and security? (Select TWO).
C. Antenna type
D. Wireless standard
Which of the following has to be defined to guarantee a computer always has a private IP address of
D. Dynamic IP addressing
Which of the following connector types is MOST commonly found with coaxial cabling?
Switch A is configured with VLAN 105 and 106. Switch B is configured with VLAN 105 and 107. Both
switches are connected with a fiber cable. In order for packets from all VLANs to cross the fiber cable,
which of the following configurations MUST be present?
A. Reverse ARP
B. Full duplex on the fiber link
D. 802.1q trunking
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