JK0-019 Exam Questions

Which of the following provides secure access to a network device?

Which of the following uses distance vector algorithms to determine the BEST network route to a destination address?

Which of the following uses classless subnet masks across a network?

Enterprise IP routing policy is MOST clearly depicted in which of the following configuration management documents?

While preparing to replace an old CAT3 cable with a CAT6 cable to implement VoIP, a facilities employee mistakenly disconnects the entire patch panel, including valid wiring to liv...

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

While working on a PC, a technician notices 0.0.0.0 in the routing table. Which of the following does this indicate?

Users inform an administrator that the network is slow. The administrator notices the bulk of the traffic is SIP and RTP traffic. Which of the following could the administrator do...

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

Which of the following is the control when observing network bandwidth patterns over time?

Which of the following technologies is used on cellular networks?

Which of the following technologies allows multiple staff members to connect back to a centralized office?

Which of the following is the MOST secure way to prevent malicious changes to a firewall?

Which of the following allows a malicious attacker to view network traffic if the attacker is on the same network segment as Joe, an administrator?

Which of the following OSI layers allows users to access network services such as file sharing?

Which of the following can function in an unsecure mode?

Which of the following is used to register and resolve IP addresses with their plain language equivalents?

An administrator determines there are an excessive number of packets being sent to a web server repeatedly by a small number of external IP addresses. This is an example of which o...

Which of the following features will a firewall MOST likely use to detect and prevent malicious traffic on the network?

Which of the following protocols is MOST commonly associated with VoIP?

Stateful packet inspection is a security technology used by which of the following devices?

Which of the following commands will provide an administrator with the number of hops a packet takes from host to host?

Which of the following is needed when using WPA2-Enterprise wireless encryption?

Which of the following technologies is used to connect public networks using POTS lines?

An administrator would like to inspect all traffic flowing over the SMTP protocol on a given network. Which of the following tools would accomplish this? (Select TWO).

Which of the following switch features allows for both incoming and outgoing data across physical ports at the same time?

Which of the following is a common physical network topology?

PKI is a method of user authentication which uses which of the following?

A technician has a network with a mix of newer and older equipment. Which of the following settings would dynamically configure whether to use full or half duplex?

An administrator needs to install a WAP in a location where there is no electrical wiring. Which of the following should the administrator use to complete a successful installation...

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

A proxy server would MOST likely be installed to provide which of the following functions? (Select TWO).

Which of the following would the telecommunications carrier use to segregate customer traffic over long fiber links?

An administrator notices SMTP traffic is being blocked by the company firewall. Which of the following ports should be opened?

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?

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

A user's laptop is unable to keep a stable network connection. Which of the following measures would MOST likely need to be configured?

The security administrator needs to restrict specific devices from connecting to certain WAPs. Which of the following security measures would BEST fulfill this need?

Which of the following performs authentication and provides a secure connection by using 3DES to encrypt all information between two systems?

The Network Interface Layer of the TCP/IP model corresponds to which of the following layers of the OSI model? (Select TWO).

In which of the following layers of the OSI model would MAC addressing be found?

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...

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 t...

Several users are reporting connectivity issues with their laptops. Upon further investigation, the network technician identifies that their laptops have been attacked from a speci...

The company is setting up a new website that will be requiring a lot of interaction with external users. The website needs to be accessible both externally and internally but witho...

Which of the following attacks would allow an intruder to do port mapping on a company's internal server from a separate company server on the Internet?

Which of the following would be used to check whether a DoS attack is taking place from a specific remote subnet?

A network technician has just upgraded a switch. The new switch's IP range and subnet mask correctly match other network devices. The technician cannot ping any device outside of t...

Joe has a small office and is looking to replace his phone system with a lower cost solution that requires minimal in-house support. Which of the following is the BEST choice?

An unusual amount of activity is coming into one of the switches in an IDF. A malware attack is suspected. Which of the following tools would appropriately diagnose the problem?