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JK0-016 dumps
Ann, a technician, installs a new WAP and users are able to connect; however, users cannot access the Internet. Which of the following is the MOST likely cause of the problem?
A. The signal strength has been degraded and latency is increasing hop count.
B. An incorrect subnet mask has been entered in the WAP configuration.
C. The signal strength has been degraded and packets are being lost.
D. Users have specified the wrong encryption type and routes are being rejected.
Correct Answer: B

Due to wrong subnet entered user is unable to communicate with anyone so to communicate he needs to be in right subnet.

Network upgrades have been completed and the WINS server was shutdown. It was decided that NetBIOS network traffic will no longer be permitted. Which of the following will accomplish this objective?
A. Content filtering
B. Port filtering
C. MAC filtering
D. IP filtering
Correct Answer: B

TCP/IP port filtering is the practice of selectively enabling or disabling Transmission Control Protocol (TCP) ports and User Datagram Protocol (UDP) ports on computers or network devices. When used in conjunction with other security practices, such as deploying firewall software at your Internet access point, applying port filters to intranet and Internet servers insulates those servers from many TCP/IP-based security attacks, including internal attacks by malicious users.

Which of the following is the FASTEST Ethernet technology?
A. 10GBaseSR
B. 10BaseT
C. 100BaseFX
D. 1000BaseT
Correct Answer: A

10GBASE-SR (“short range”) is a port type for multi-mode fiber and uses 850 nm lasers. Its Physical Coding Sublayer 64b/66b PCS is defined in IEEE 802.3 Clause 49 and its Physical Medium Dependent PMD in Clause 52. It delivers serialized data at a line rate of 10.3125 Gbit/s.

Users have reported issues accessing an Internet website. The network technician wants to verify network layer connectivity. Which of the following tools can provide the verification?
A. ping
B. netstat
C. route
D. arp
Correct Answer: A

Ping is a computer network administration utility used to test the reachability of a host on an Internet Protocol (IP) network and to measure the round-trip time for JK0-016 dumps messages sent from the originating host to a destination computer.

Which of the following network protocols is used to transport email between servers?
Correct Answer: D

While electronic mail servers and other mail transfer agents use SMTP to send and receive mail messages, user-level client mail applications typically use SMTP only for sending messages to a mail server for relaying.

Which of the following network protocols is used to resolve FQDNs to IP addresses?
Correct Answer: A

An Internet service that translates domain names into IP addresses. Because domain names are alphabetic, they’re easier to remember. The Internet however, is really based on IP addresses. Every time you use a domain name, therefore, a DNS service must translate the name into the corresponding IP address. For example, the domain name www.example.com might translate to

Which of the following is the common port used for IMAP?
A. 25
B. 53
C. 143
D. 443
Correct Answer: C

The Internet Message Access Protocol (commonly known as IMAP) is an Application Layer Internet protocol that allows an e-mail client to access e-mail on a remote mail server. The current version, IMAP version 4 revision 1 (IMAP4rev1), is defined by RFC 3501. An IMAP server typically listens on well-known port 143.

Ann, a new user, has a workstation that has connectivity to the printer located in her department, but cannot access the Internet. The result of an ipconfig command on Ann’s workstation is as follows:
IP address:
Subnet Mask:
Default Gateway:
Which is MOST likely preventing the user from accessing the Internet?
A. Duplicate IP address
B. Incorrect gateway
C. Incorrect VLAN
D. Bad switch port
Correct Answer: B

We usually give default gateway as an end device which is directly connected with ISP so in this case user has lost his connectivity with due to wrong default gateway configured.

Users are reporting that some Internet websites are not accessible anymore. Which of the following will allow the network administrator to quickly isolate the remote router that is causing the network communication issue, so that the problem can be reported to the appropriate responsible party?
A. Ping
B. Protocol analyzer
C. Tracert
D. Dig
Correct Answer: C

Tracet command will tell the administrator which route is not present or which is present so he will come to know whether he has appropriate route or not.

Which of the following defines the amount of time a host retains a specific IP address before it is renewed or released?
A. DHCP lease
B. DNS suffix
C. Subnet mask
D. DHCP reservation
Correct Answer: A

By default, each IP address assigned by a DHCP Server comes with a one-day lease, which is the amount of time that the address is valid.

A user wants to connect seven PCs together for a game night. JK0-016 dumps Which of the following should the user install to help with this task?
A. Media convertor
B. Switch
C. Firewall
D. Bridge
Correct Answer: B

They connect multiple PCs, printers, servers and other hardware. Switches allow you to send information, such as email, and access shared resources, including printers, in a smooth, efficient, and transparent manner.

A technician wants to separate networks on a switch. Which of the following should be configured to allow this?
B. Trunking
C. Spanning tree
D. Traffic filtering
Correct Answer: A

A VLAN is a group of end stations in a switched network that is logically segmented by function, project team, or application, without regard to the physical locations of the users. VLANs have the same attributes as physical LANs, but you can group end stations even if they are not physically located on the same LAN segment.

Spanning-Tree Protocol is used with which of the following network devices?
A. Router
C. Switch
D. DHCP server
Correct Answer: C

Spanning Tree Protocol (STP) is a Layer 2 protocol that runs on bridges and switches. The specification for STP is IEEE 802.1D. The main purpose of STP is to ensure that you do not create loops when you have redundant paths in your network. Loops are deadly to a network.

Which of the following TCP/IP model layers does the OSI model Presentation layer map to?
A. Transport
B. Internet
C. Application
D. Network Interface
Correct Answer: C

The Application layer provides applications the ability to access the services of the other layers and defines the protocols that applications use to exchange data. There are many Application layer protocols and new protocols are always being developed.

Joe, a user, has a computer that has a link light on his network interface card (NIC); however, Joe is unable to access the Internet. JK0-016 dumps Which of the following is the cause of this issue?
A. Faulty GBIC
B. Faulty SFP
C. Cable is a crossover
D. VLAN mismatch
Correct Answer: D

As user has link light on NIC that means he has connectivity with switch so he need to check his vlan assignment.

A network technician is troubleshooting signal problems with certain WAPs in an office and finds consistently high ping times across the units. Such an issue is called which of the following?
A. Latency
B. Attenuation
C. Crosstalk
D. Frequency hopping
Correct Answer: A

During the high ping time users are using most of the bandwidth that causes latency so signal strength get affected by this.

On which of the following OSI model layers would a MAC address be used?
A. Network
B. Data Link
C. Transport
D. Physical
Correct Answer: B

The ITU-T G.hn standard, which provides high-speed local area networking over existing wires (power lines, phone lines and coaxial cables), includes a complete data link layer which provides both error correction and flow control by means of a selective repeat Sliding Window Protocol.

A technician needs to ensure that traffic from a specific department is separated within several switches. Which of the following needs to be configured on the switch to separate the traffic?
A. Duplex settings
B. SNMP string
C. VLAN assignments
D. Spanning tree
Correct Answer: C

A VLAN is a group of end stations with a common set of requirements, independent of physical location. VLANs have the same attributes as a physical LAN but allow you to group end stations even if they are not located physically on the same LAN segment.

Several users from the finance department report that they are able to access the Internet, but unable to connect to their financial applications. The network technician is unable to ping the finance server. The technician decides to check the switch and determines that Internet access is working. Which of the following is a possible cause of the access issues?
A. Faulty cable
B. Remote management disabled
C. Improper VLAN assignment
D. Mismatched duplex
Correct Answer: C

Finance Server is placed in same VLAN which is assigned to finance users if they are able to access internet that’s means connectivity to switch is good, so we have to check the VLAN assigned to users.

Which of the following properties of DHCP would a technician use to ensure an IP address is not leased out from the active scope?
A. Reservations
B. Lease times
C. Removing IPs from the active leases
D. Configuring the DNS options
Correct Answer: A

Reservations are permanent lease assignments that are used to ensure that a specified client on a subnet can always use the same IP address. You can use DHCP reservations for hosts that require a consistent IP address, but do not need to be statically configured.

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