Free JK0-023 Exam Dumps Preview

Kimf a network technicianf is installing a new managed 10/100 Mbps switch on the network. The network has an older printer with a 10Mbps network adapter that will be moved to the new switch.

Which of the following setngs on the switch will need to be confgured to support the printer?

During a disaster recovery testf several billing representatves need to be temporarily setup to take payments from customers. It has been determined that this will need to occur over a wireless networkf with security being enforced where possible.

Which of the following confguratons should be used in this scenario?

A network administrator has been assigned the 192.168.2.64/26 network and assigns the following computerns IP addresses:
192.168.2.70
192.168.2.100
192.168.2.125
192.168.2.130
When the administrator tries to ping the other computers from 192.168.2.130f an ECHO REPLY is not received.

Which of the following must the network administrator do?

Zachf a technicianf is installing an 802.11n network.

Which of the following should he disable to stop broadcastng the network name?

Zachf a customerf 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?

Which of the following is a public class C IP address?

Which of the following methods would be implemented to correct a network slowdown caused by excessive video streaming?

A network technician is troubleshootng signal problems with certain WAPs in an ofce and fnds consistently high ping tmes across the units.
Such an issue is called which of the following?

A network technician wants to baseline trafc fows on a specifc network.

Which of the following will provide the GREATEST level of detail?

In which of the following wireless standards is MIMO used?

DRAG DROP

the fber cable connecton types to the appropriate image.

A large corporate ofce is looking to place smaller network closets around campus to handle switching for remote workstatons.
To which of the following is this referring?

Which of the following would allow for a specifc device to receive the same IP address from a DHCP server?

A technician is troubleshootng a network camer

Some visitors are unable to access the wireless network. The networkns wireless infrastructure is comprised of three diferent buildings with the confguratons listed below. Wireless network in Building A and C is used exclusively for internal employees and Building B is used for visitors and requires no additonal confguraton on their devices. Which of the following setngs would need to be modifed to provide wireless access to all visitors? Building A Building B Building C Channel: 2 Channel: 6 Channel: 11
Encrypton: WPA2 Encrypton: WPA2 Encrypton: WPA2

An administrator is using a packet snifer to try to determine what is causing the trafc on the network. The administrator sees a lot of packets on port 25.

Which of the following trafc types is MOST likely using port 25?

Which of the following is an invalid MAC address?

A content flter is MOST likely installed on which of the following servers?

Which of the following protocols is used by the ping command?

Which of the following spreads out each of the individual wires of a UTP cable onto their own metal connector?

Kimf a network technicianf needs to identfy the MAC address of a device that is creatng broadcast storms on the network.

Which of the following tools will provide the needed informaton?

An applicaton is using port 2000 on a PC.

Which of the following could an administrator do to determine what sofware is listening on that port?

Two duplicate pieces of equipment can be used in conjuncton for which of the following purposes? (Select
TWO).

Kimf a network administratorf should consult which documentaton sources FIRST to determine the cause of recent network issues?

Which of the following network topologies is ONLY possible between two users?

Lisaf a consultantf is inspectng an ofce that reports frequent wireless issues. Upon scanning the network broadcastng in the vicinity of the ofcef seven SSIDs are found. The companyns Wi-Fi network and three others all share channel six.

Which of the following is MOST likely causing the issue?

Which of the following defnes a rack located in an ofce building between the main rack and other ofce equipment?

Honeypots and honeynets are diferent in which of the following ways?

A small company has a single mult-layer switch. The company currently has all network devices on the same subnet but would like to switch the servers to another subnet for security reasons. The company cannot budget any more money to purchase additonal hardware.

Which of the following features should be used to achieve the new company requirements?

Zachf a userf on a network cannot access any network resources. The link light on his computer shows that a connecton is present.

Which of the following is the MOST likely cause of the problem?

An IP address assigned from a DHCP server is said to be which of the following?

Annf a new userf is unable to communicate on the network from her computer. A technician has verifed that the cables are functoning properly. Based on the informaton belowf which acton should the technician take to correct Annns problem? Computer_A Switch_A
IP: 10.0.0.60 Int VLAN10
SM: 255.255.255.0 IP address 10.0.0.1/28
GW: 10.0.0.1 Speed 100 Duplex Full

Lisaf an administratorf believes that the network has been atacked and there is no known defniton or preventon method to help avoid this atack.

Which of the following BEST describes this scenario?

A user has three diferent subnets in an ofce.

Which of the following can be confgured to allow two of the subnets to communicate directly with each other at the switch level?

Which of the following devices exist as either hardware or sofware to assist in routng trafc? (Select TWO).

Zachf a network technicianf is confguring several switches to be managed remotely.

Which of the following must be confgured to connect via SSH to each of those devicesf as well as to retrieve various parameters?

Users report that an internal web server is not responding.

Which of the following commands could be used on the server to confrm that the web service is running?

A company recently added an additon to their ofce building. A technician runs new plenum network cables from the switch on one side of the company's gymnasium 80 meters (262 f.) to the new ofces on the other sidef draping the wires across the light fxtures. Users working out of the new ofces in the additon complain of intermitent network connectvity.

Which of the following is MOST likely the cause of the connectvity issue?

Which of the following port numbers needs to be open on a frewall to allow FTP trafc?

Annf a technicianf installs a wireless router in a network closet in a large ofce. She then confgures all workstatons in various ofces on that foor to use the wireless connecton. Maximum connecton speed at each workstaton is 54 Mbps. Some users complain that their network connecton is very slow.

Which of the following is MOST likely the problem?

Afer a technician has identfed the problem and its impactf which of the following steps should be performed NEXT?

A userns laptop is unable to keep a stable network connecton.

Which of the following measures would MOST likely need to be confgured?

Which of the following can be used to compromise a WPA encrypted wireless network when the rainbow table does not contain the key?

A network administrator suspects an employee of using the companyns Internet connecton to download illegal content.

Which of the following can be used to inspect ongoing network trafc?

Which of the following technologies has more non-overlapping channels to utliie in a wireless LAN?

A company has been given a Class C address to be utliied for all devices. The company has several subnets and the largest subnet has 15 hosts.

Which of the following represents the MINIMUM CIDR notaton of this subnet mask?

A technician wants to connect a new wireless router to a main network switch.

Which of the following cable types would MOST likely be used to establish this connecton?

Sandyf a network technicianf is troubleshootng connectvity to a server at a remote ofce.

Which of the following utlites should be used to locate the network issue?

A network administrator is implementng a wireless honeypot to detect wireless breach atempts. The honeypot must implement weak encrypton to lure malicious users into easily breaking into the network.

Which of the following should the network administrator implement on the WAP?

A technician receives a work order that a user can no longer access any external websites. The user is the only one afectedf but can stll access websites by IP address.

Which of the following is the MOST likely cause?

An applicaton server is placed on the network and the intended applicaton is not working correctly.

Which of the following could be used to make sure sessions are being opened properly?

A user reports sporadic network outages. The user tells the administrator it happens afer approximately 20 minutes of work on an applicaton.
The administrator should begin troubleshootng by checking which of the following?

Which of the following TCP/IP model layers does the OSI model Presentaton layer map to?

A technician has received a trouble tcket from a user who has intermitent wireless access. Moving the computer farther from the WAP results in a more stable connecton.

Which of the following is MOST likely the cause of this instability?

In contrast to earlier Wi-Fi speedsf which of the following BEST describes the antenna and channeliiaton propertes used in 802.11n?

Which of the following reasons would MOST likely be used to implement QoS and trafc shaping solutons?

Zachf a technicianf needs to terminate a CAT5e Ethernet cable to a 110 block.

Which of the following tools should he use?

Users are reportng 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 communicaton issuef so that the problem can be reported to the appropriate responsible party?

Which of the following WAN technologies has synchronous up/down speeds?

The security administrator needs to restrict specifc devices from connectng to certain WAPs.

Which of the following security measures would BEST fulfll this need?

The unit responsible for the successful shaping and transmission of a digital signal is called:

A network technician is setng up a wireless access point that would only allow a certain laptop to be able to access the WAP.
By using ACLf which of the following would be fltered to ensure only the authoriied laptop can access the WAP?

Users trying to access a website using HTTPS are being blocked by the frewall.

Which of the following ports needs to be allowed?

Jeff a network administratorf would like to ensure that the footprint of the companyns wireless coverage is limited to the ofce bordersf located on the premises.

Which of the following features should he adjust on all of the companyns WAPs to make this change?

Which of the following is used to explain guidelines for users while using network resources?

Joef a userf reports getng a "This page cannot be displayed" error message in his web browser. Howeverf Joe can ping the default gateway.

Which of the following is the MOST likely cause of the problem?

Kimf a userf reports that the web browser is indicatng the site certfcate is not trusted.

Which of the following atacks may be in progress?

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

Karenf a network administratorf has made changes to the DHCP leasing setup for a given network and is expectng all devices to recogniie the changes shortly. Howeverf afer a full weekf none of the machines on the company network are grabbing new addresses with the new lease tme.

Which of the following is the problem?

Zachf an administratorf wants to eliminate remote access to a network from all usersf except those users in Zachns own country.

Which of the following security measures could he use to set up this functonality?

The network interface layer of the TCP/IP model corresponds with which of the following layers of the OSI model? (Select TWO).

Which of the following is rated for speeds over 800Mbps?

A network technician is concerned that a user is utliiing a company PC for fle sharing and using a large amount of the bandwidth.

Which of the following tools can be used to identfy the IP and MAC address of the userns PC?

CAT6 Ethernet cabling has a rated maximum transmission capability of:

Which of the following wireless technologies only uses the 5GHi spectrum but reaches a theoretcal throughput of only 54Mbps?

Which of the following protocols is MOST commonly used for the transfer of router confguraton fles?

A network administrator wants to see what ports are open on a server.

Which of the following commands will show open ports?

Lisaf an administratorf is responsible for one Linux and two Windows servers. She would like to review all server logs centrally.

Which of the following services could Lisa use in this scenario?

A network administrator has decided to tghten company security afer a recent data breach. The new scheme calls for a strong 10 character passwordf a special 4 digit pin codef and a one-tme use dynamic token that is accessed via a smartphone applicaton.

Which of the following is being implemented?

The network technician has recently implemented VLANs on the company network. Ever since this implementatonf sectons within the company can no longer share informaton. While troubleshootngf the technician realiies they are unable to ping a device from another VLAN.

Which of the following needs to be confgured to fx this problem?

Two WAPs are positoned with overlapping coveragef but seamless roaming across them is not working.

Which of the following should be checked?

A technician needs to ensure that trafc from a specifc department is separated within several switches.

Which of the following needs to be confgured on the switch to separate the trafc?

A technicianf Joef visits a site that has reported a network down emergency. He immediately reboots the switches and the router since the network is down.

Which of the following network troubleshootng methodology steps should Joe have performed FIRST?

Which of the following protocols works at the LOWEST layer of the OSI model?

Which of the following uses a Management Informaton Base (MIB) to monitor the network?

A technician is troubleshootng a problem where data packets are being corrupted.

Which of the following connectvity problems should the technician check?

A technician is installing a PoE switch for VoIP phones.

Which of the following is the technician MOST likely going to confgure on the switch?

Which of the following is the MAXIMUM rated speed for CAT5 cabling?

Which of the following protocols are used to connect devices in a secure manner? (Select TWO).

An administrator can use packet tags to confgure which of the following?

A technician is reviewing the following company diagram to determine proper connectvity setngs:

Which of the following device confguratons is out of specifcatons?

Which of the following is the reason why a companyns network may contain a DHCP server?

Karenf a new employeef is unable to get to the department's server while other employees are having no issues. The network administrator has verifed that Karen has permission to the server and the workstaton is able to get to other network resources.

Which of the following is the MOST likely cause?

Which of the following components of wiring distributon is referred to as the core communicatons closet for an organiiaton?

A company wants to have a security ione to isolate trafc within the frewall.

Which of the following could be used?

A network administrator is deploying a new wireless network with over 50 thin WAPs and needs to ensure all WAPs use consistent frmware and setngs.

Which of the following methods provides this functonality?

A customer wants to increase frewall security.
Which of the following are common reasons for implementng port security on the frewall?
(Select TWO).

The applicaton layer in the TCP/IP model is comparable to which of the following layers in the OSI model?

Which of the following is an advantage of dynamic routng?

Which of the following protocols are used for accessing a command line terminal session for management purposes? (Select TWO).