1D0-61C 試験問題を無料オンラインアクセス

Which of the following is a drawback to using Wired Equivalent Privacy (WEP)?

• A.Encryption and decryption speeds are slower compared to other protocols.
• B.Symmetric-key encryption is susceptible to cracking.
• C.The number of devices that can communicate using WEP is limited.
• D.Wireless network overhead is excessive.

Ron has an older computer to which he frequently downloads and saves company files. He recently noticed that he was running low on disk space and decided to delete many old files that he no longer needed. He now notices that it takes a long time to open or save documents to his hard drive. Which maintenance task can help?

• A.Disk defragmentation
• B.fdisk command
• C.Disk cleanup
• D.chkdsk command

To restore a backup file on a Windows-based computer, you:

• A.Use Device Manager in the Control Panel.
• B.Use the Disk Management utility in the Microsoft Management Console (MMC).
• C.Use the BackupandRestore utility in the Control Panel.
• D.Extract the backed-up file.

A friend has called you about a possible computer problem because her computer is acting strangely. Sounds play unexpectedly, the monitor turns off suddenly, the hard-drive light flashes constantly, the computer sometimes reboots itself without warning. When you inspect your friend's system, you notice that several ports are open. Which of the following is most likely the cause of these symptoms?

• A.The computer has been infected with a polymorphic virus.
• B.The computer is experiencing a denial-of-service attack.
• C.The computer has been infected by a worm.
• D.The computer has been infected with an illicit server.

Lisa is traveling on company business. She has a company-issued smartphone with 4G access. Her hotel does not provide Internet access. What advantage does 4G provide to help her access the Internet?

• A.She can use the 4G phone to establish a VPN connection into the company network.
• B.She can use a 4G mobile hotspot device with her phone to connect her laptop to Wi-Fi.
• C.She can use her41G phone's GPS to identify another hotel that provides in-room Internet access.
• D.She can use the41G phone to call and locate a public location that provides free Wi-Fl.