Network and Laptop Troubleshooting Guide
Network Fundamentals
Question 1: MAC Address Forwarding
Which network device makes forwarding decisions based on the destination MAC address that is contained in the frame?
Answer: switch
Question 2: Multipurpose Network Devices
A customer is considering a multipurpose device to create a home network. Which three devices are usually integrated into a multipurpose network device? (Choose three.)
Answer:
- router
- switch
- wireless access point
Question 3: Internet Access for Mobile Workers
Which technology would be recommended for a business that requires workers to access the Internet while visiting customers at many different locations?
Answer: cellular
Question 4: Dial-up Connection Usage
When is a dial-up connection used to connect to an Internet provider?
Answer: when a regular telephone line is used
Question 5: Fastest Internet Connection Type
Which type of connection to the Internet is capable of the fastest transfer rates?
Answer: cable
Question 6: Logical Topology of a LAN
Which statement describes the logical topology for a LAN?
Answer: It describes how computers access the LAN medium.
Question 7: Network Cabling Preventive Maintenance
ABC Company requires preventive maintenance for all local network cabling once a year. Which task should be included in the preventive maintenance program?
Answer: Inspect all patch cables for breaks.
Question 8: Example of Network Maintenance
What is an example of network maintenance?
Answer: educating users on IT policies and procedures
Question 9: Troubleshooting Network and Printer Access
A technician is troubleshooting a problem where the user claims access to the Internet is not working, but there was access to the Internet the day before. Upon investigation, the technician determines that the user cannot access the network printer in the office either. The network printer is on the same network as the computer. The computer has 169.254.100.88 assigned as an IP address. What is the most likely problem?
Answer: The computer cannot communicate with a DHCP server.
Question 10: Technology for PAN Connection
Which technology is most often used to connect devices to a PAN?
Answer: Bluetooth
OSI Model and Network Protocols
Question 11: OSI Layers Mapping to TCP/IP Application Layer
Which three layers of the OSI model map to the application layer of the TCP/IP model? (Choose three.)
Answer:
- application
- session
- presentation
Question 12: Identifying IPv6 Interface ID
A device has an IPv6 address listed as 2001:0DB8:75a3:0214:0607:1234:aa10:ba01. What is the interface ID of the device?
Answer: 0607:1234:aa10:ba01
Question 13: Characteristic of UDP Protocol
What is a characteristic of the UDP protocol?
Answer: low overhead
Question 14: Disadvantage of 802.11g Configuration
What would be a disadvantage of configuring a wireless router or access point to operate only in accordance with the 802.11g protocol standard?
Answer: 802.11a wireless devices will not be able to connect to the wireless network.
Question 15: Maximum Segment Length for 1000BASE-T
What is the maximum segment length that is specified by the 1000BASE-T standard?
Answer: 328 ft (100 m)
Question 16: Characteristics of Ethernet Technology
Which two characteristics describe Ethernet technology? (Choose two.)
Answer:
- It is supported by IEEE 802.3 standards.
- It uses the CSMA/CD access control method.
Network Models and Resource Sharing
Question 17: Reasons for Choosing Client/Server Model
Which three factors are reasons for a company to choose a client/server model for a network instead of peer-to-peer? (Choose three.)
Answer:
- The company network requires secure access to confidential information.
- The data gathered by the employees is critical and should be backed up on a regular basis.
- The users need a central database to store inventory and sales information.
Question 18: Benefit of Computer Data Network
What benefit is provided by a computer data network?
Answer: resource sharing
Question 19: When a Printer is Considered a Network Host
When would a printer be considered a network host?
Answer: when it is connected to a switch
Question 20: Troubleshooting Network Connectivity Issue
A user can print to a printer that is on the same network, but the traffic of the user cannot reach the Internet. What is a possible cause of the problem?
Answer: The PC default gateway address is missing or incorrect.
Network Standards and Performance
Question 21: Significance of “100” in 100BASE-TX
What is identified by the 100 in the 100BASE-TX standard?
Answer: the maximum bandwidth in Mb/s
Question 22: Troubleshooting Gigabit NIC Data Transfer Rate
A user installs a new gigabit NIC in a PC. The user notices that the data transfer rate is much slower than expected. What should the user do to fix the problem?
Answer: Change the NIC duplex setting from half duplex to full duplex.
Question 23: Troubleshooting Refurbished Computer Performance
A company adds a few refurbished computers to a network. The company finds, however, that the refurbished computers perform significantly worse than the original networked computers do. The original computers performed much faster with applications that required the transfer of data over the network. What should the company technicians do?
Answer: Check if the network interface cards in the refurbished computers are limited to 10 Mb/s.
Laptop Hardware and Components
Question 24: Difference Between Desktop and Laptop Motherboards
What is the major difference between desktop and laptop motherboards?
Answer: Desktop motherboards typically have a standard form factor and are interchangeable while laptop motherboards are proprietary.
Question 25: Laptop Expansion Interface
Which type of interface do current laptops use to achieve similar expansion capabilities as desktops?
Answer: PC ExpressCard
Question 26: Common Laptop Display Technology
Which display technology is most commonly found in modern laptop computers?
Answer: LCD
Question 27: Cell-Phone Standards for Multimedia
Which generation of cell-phone standards was the first to deal with how to send and receive text, photographs, and video?
Answer: third
Question 28: Advantages of Laptops over Desktops
Which two characteristics make laptops a better choice than desktop computers? (Choose two.)
Answer:
- mobility
- size
Question 29: Identifying Laptop Connection Type
Refer to the exhibit. Which type of connection is indicated when a laptop LED is illuminated with the symbol that is shown? (Assuming the symbol represents Bluetooth)
Answer: Bluetooth
Question 30: Troubleshooting Distorted Laptop Display
A technician is responding to a helpdesk ticket for a laptop that has a distorted image of the Windows desktop. What is one possible solution?
Answer: Obtain an updated display driver from the laptop manufacturer.
Laptop Power Management and Peripherals
Question 31: Configurable Power-Off Devices in Windows XP
Which two devices can be individually configured within Windows XP to power off after the laptop has been idle for a given period of time? (Choose two.)
Answer:
- disk drive
- monitor
Question 32: Devices Connecting to USB or FireWire Ports
Which three components commonly connect to USB or FireWire ports? (Choose three.)
Answer:
- camera
- printer
- scanner
Question 33: Laptop Ports for Communication and Network Connectivity
Which two laptop ports are used primarily for communication and network connectivity? (Choose two.)
Answer:
- Ethernet
- modem
Question 34: Accessing Power Options in Windows XP
Where can a technician change the power schemes on a laptop running Windows XP?
Answer: Select Power Options from within the Control Panel.
Question 35: Open-Ended Troubleshooting Questions
Which two questions that a technician can ask during the troubleshooting process are considered open-ended? (Choose two.)
Answer:
- What software has been installed?
- How would you describe the problem you are experiencing?
Laptop Memory and Maintenance
Question 36: Identifying SODIMM Component
A technician is replacing a laptop SODIMM. With what component is the technician working?
Answer: RAM
Question 37: Cleaning CDs and DVDs
Which two actions should be performed to clean the surface of CDs and DVDs? (Choose two.)
Answer:
- Use a lint-free cotton cloth.
- Wipe the disc from the center outward.
Question 38: Troubleshooting Laptop Power Failure
A technician has been called in to troubleshoot a laptop that fails to power on. The technician repeatedly pushes the power button without any results. What should the technician do next?
Answer: Attach the AC adapter.
Question 39: Identifying Supported Form Factors
Refer to the exhibit. Which two form factors are supported by the devices shown in the graphic? (Assuming the graphic shows PC cards with 34mm and 54mm width)
Answer:
- 34mm wide
- 54mm wide
Question 40: Using Function Keys for External Monitor Connection
Refer to the exhibit. A laptop has these graphics on specific keys on the keyboard. Which key would be used in conjunction with the Fn key to connect a laptop to an external monitor? (Assuming F8 key has a graphic indicating external monitor)
Answer: F8
Question 41: Identifying Laptop Component Port
Refer to the exhibit. Which laptop component port is circled? (Assuming the circled port is a USB port)
Answer: USB
Question 42: Cleaning Optical Drives
What is the proper way to clean optical drives?
Answer: Use a cleaning disc for optical drives.
Question 43: Component Removal Before Laptop Cleaning
Which component should be removed before cleaning a laptop?
Answer: battery