Kunci Jawaban Cisco IT Essentials chapter 8

Chapter 08 – IT Essentials

01. Which device enables computers to be attached to a network without segmenting the network?

• Bridge;
• Hub;
• Router;
• Switch.

02. Which two statements are true of network computing in contrast to non-network computing?

• File duplication is more likely;
• Fewer peripherals are needed;
• Resource conservation is decreased;
• Application licensing costs are higher;
• Centralized administration capabilities are enchanged.

03. Which networking protocol translates a network name such as www.cisco.com to a unique IP address?

• APIPA;
• ARP;
• DHCP;
• DNS;
• Proxy ARP

04. The Internet is an example of which type of network?

• LAN;
• SAN;
• WAN;
• WLAN

05. Which suite of protocols is used to transmit data across the Internet?

• Appletalk;
• ARP;
• DNS;
• IPX/SPX;
• TCP/IP.

06. Which method is recomended in order to avoid problems with counterfeit network equipment?

• Buy extra parts in case one fails;
• Only install equipment that comes with a user manual;
• Purchase equipment only through manufacturer-authorized partners;
• Use items of uncertain authenticity only in non-mission critical applications.

07.  Which Windows XP command displays the route taken by packets crossing an IP network?

• Iproute;
• Netview;
• Nllokup;
• Ping;
• Tracert.

08. What is the maximum range a data signal can travel through a 1000BASE-T network segment?

• 3280 ft(1000m);
• 1640 ft(500m);
• 984 ft(300m);
• 607 ft(185m);
• 328 ft(100m).

09.  A student is helping a friend with a home computer that can no longer acces the internet. Upon investigation, the student discovers that the computer has been assigned the IP address 169.254.100.88. What could cause a computer to get such an IP address?

• A bad network cable;
• Interference from surrounding devices;
• Reduced computer power supply output;
• Static IP addresing with incomplete information.

10. What is true about the TIA/EIA?

• It develops and maintains the 802 standards LANs;
• It establishes consensus processes among qualified groups;
• It defined the Open System Interconnection networking model;
• It developed standards to replace proprietary standards after US thelephone industry deregulation.

11.  A student brings a laptop to a school that has wireless access. The laptop is not connecting to the school network. What is the first thing that the student should check?

• The laptop battery level;
• The IP address that is assigned to the laptop;
• The power level of the wireless networks within range;
• The distance from the school-owned wireless device;
• The available wireless networks within range.

12. Workers are required to access the company LAN when traveling. Wich networking technology can provide secure and encrypted access to the LAN?

• ADSL;
• ISDN;
• VPN;
• WAN.

13. Which two characteristics describe Ethernet technology? (Choose two)

• Supported by IEEE 802.3 standards;
• Supported by IEEE 802.5 standards;
• Typically uses an average of 16Mb/s for data transfer rates;
• Uses a bus logical topology;
• Uses a ring topology.

14. What is most commonly used DSL technology?

• ADSL;
• HDSL;
• IDSL;
• SDSL;
• VDSL.

 15. Why should network cables always be labeled?

• To prevent cable wear;
• To improve appearance;
• To reduce network clutter;
• To save trobleshooting time.

16. Which procedure is normally performed when connecting a computer to an Ethernet network for the first time?

• Manually assign an IP address;
• Configure the NIC for a MAC address;
• Atach a cable that has an RJ-45 connector;
• Configure the NIC for a specific network protocol.

17.  Which three factors are reasons to choose a client/server model for a network instead of peer-to-peer? (Choose three)

• The network is small with less than eight users;
• The company network requires secure access to confidential information;
• The users need a central database to store inventory and sales information;
• Each user understands how to safety share files across a network;
• The data gathered by the emplyess is critical and should be backed up on a regular basis;
• All employees passed a strict background check as part of the corporate hiring practices.

18. Which dotted decimal number is used to distinquish the network portion on IP address from the host portion?

• Default gateway;
• MAC address;
• Physical address;
• Subnet mask.

19.  A technician instal is a new NIC in a PC and connects an Ethernet patch cord from the NIC to a wall jack. The technician then notes that the link lights are not active on the NIC. Which two problems could be indicated by this lack of activity? (Choose two)

• Faulty NIC;
• Bad IP address;
• Faulty patch cord;
• Unavailable DHCP server;
• Incorrect protocol configuration.

20. Which two factors are used to determine the different categories of UTP cabling? (Choose two)

• The distance a signal can travel through the cable;
• The number of twists in the wires inside the cable;
• The number of wires inside the cable;
• The type of shielding used inside the cable;
• The type of connectors required to terminate the cable.

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