Network+ Certification Practice Exam – Flashcards

You are designing a wireless network for a client. Your client needs the network to support a data rate of at least 150 Mbps. In addition, the client already has a wireless telephone system installed that operates 2.4 GHz. Which 802.11 standard will work best in this situation?

You have configured a wireless access point to create a small network. You have configured all necessary parameters. Wireless clients seem to take a long time to find the wireless access point. You want to reduce the time it takes for the clients to connect. What should you do?

Which IEEE standard describes wireless communication?

How do switches and bridges learn where devices are located on a network?

You are reviewing the output of the show interfaces command for the Gi0/1 interface on a switch. You notice a significant number of CRC errors displayed. What are the most likely causes? (Select two. Either response is a complete solution.)

Consider the following output. ;; res options: init recurs defnam dnsrch ;;got answer: ;;->>HEADER<<-opcode:QUERY, status; NOERROR,id:4 ;;flags: qr rd ra; QUERY:1, ANSWER:1, AUTHORITY:2, ADDITIONAL:0 ;;QUERY SECTION: ;; westsim111.com, type = A, class = IN ;;ANSWER SECTION: westsim111.com. 7h33m IN A 76.141.43.129 ;;AUTHORITY SECTION: westsim111.com. 7h33m IN NS dns1.deriatct111.com. westsim111.com. 7h33m IN NS dns2.deriatct222.com. ;;Total query time: 78 msec ;;FROM: localhost.localdomain to SERVER: default -- 202.64.49.150 ;;WHEN: Tue Feb 16 23:21:24 2005 ;;MSG SIZE sent: 30 rcvd: 103 Which of the following utilities produced this output?

You need to find out what kind of laws might apply to the design and operation of your network. Which type of document would you consult?

Your organization recently opened a branch office. You contracted with a WAN service provider to connect the branch office network to your home office network. This morning, users at the branch office reported that they can no longer access resources on the home office network. You ran the show interfaces command on the router at the home office and had an administrative assistant run the same command on the router at the branch office. Both routers reported the following: • Interface status: Up • Protocol status: Down What is the most likely cause of this WAN issue?

Match each Wi-Fi jamming attack on the left with its corresponding description on the right.

You have been asked to draft a document related to evidence gathering that contains details about personnel in possession and control of evidence from the time of discovery up through the time of presentation in court. What type of document is this?

Which exploit seeks to maliciously re-associate the IP address of a legitimate network host with the MAC address of the attacker's computer.

You manage a local area network with several switches. A new employee has started today so you connect her workstation to a switch port. After connecting the workstation, you find that the workstation cannot get an IP address from the DHCP server. You check the link and status lights and the connection is working properly. A ping to the loopback address on the workstation succeeds. No other computers seem to have the problem. Which of the following is the most likely cause of the problem?

Which of the following could easily result in a denial of service attack if the victimized system had too little free storage capacity?

Consider the 850 nm multimode fiber optic cable shown below. How much loss can you expect between the transmitter and the receiver?

You are adding a new rack to your data center, which will house five new blade servers. The new servers will be installed in a cluster that will host a customer tracking database. The only space you have available in the data center is on the opposite side of the room from your existing rack, which already houses several servers, a switch, and a router. You plan to connect each new server to the switch in the existing rack using straight-through UTP cables that will be run along the floor around the perimeter of the data center. To provide power for the new devices, you will hire an electrician to install several new 20-amp wall outlets near the new rack. To protect against power failures, you also plan to install a UPS in the rack along with redundant power supplies for the server. Will this configuration work?

Arrange the steps in the Change and Configuration Management process on the left in the correct order in which they should be completed on the right.

You are adding a new rack to your data center, which will house two new blade servers and a new switch. The new servers will be used for virtualization. The only space you have available in the data center is on the opposite side of the room from your existing rack, which already houses several servers, a switch, and a router. You plan to configure a trunk port on each switch and connect them with a straight-through plenum UTP cable that will be run through the suspended tile ceiling of the data center. To protect against power failures, you also plan to install a UPS in the rack along with redundant power supplies for the server. The only power available in the data center is located on the wall opposite the new server rack, so you must run extension cords across the floor to plug in the UPS unit. There are problems with this plan. What should you do?

When you run the show interfaces command on switch1, you observe a significant number of runts on the Gi0/1 interface. What does this statistic indicate?

You plan to implement a new security device on your network. Which of the following policies outlines the process you should follow before implementing that device?

Which of the following benefits apply only to creating VLANs with switches and not to segmenting the network with regular switches?

The Data Link Layer of the OSI model is comprised of two sublayers. What are they? (Select two.)

Match each Interoperability Agreement document on the left with the appropriate description on the right. Each document may be used once, more than once, or not at all.

You are implementing a SOHO network for a local business. The ISP has already installed and connected a cable modem in the business. The business has four computers that need to communicate with each other and the Internet. The ISP's cable modem has only one RJ45 port. You need to set up the network with the following in mind: • Spend as little money as possible. • Do not purchase unnecessary equipment. • Computers need to have a gigabit connection to the network. • New devices should not require management or configuration. You examine each computer and notice only one of the four computers has a wireless NIC; they all have Ethernet NICs. What should you purchase?

You manage the website for your company. The Web1 server hosts the website. This server has the following configuration: • Dual core processor • Dual power supplies • RAID 5 volume • One RAID controller • Two 1000 Mbps network adapters Which component is a single point of failure for the website?

What is the basic purpose of the OSI Physical layer?

Match each decimal value on the left with the corresponding hexadecimal value on the right. Not all decimal values have a corresponding hexadecimal value.

You have just started a new job as a network team leader for a small company. You are responsible for overseeing the work of Help Desk technicians, as well as doing your own share of the administrative work. To improve the safety of your organization, you decide to assemble Material Safety Data Sheets (MSDS) for all chemicals used in your organization. How should you get them?