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单选题An end user reports that their computer is not performing as fast as it used to and it shuts down unexpectedly. Which of the following is the MOST likely cause?（）A Network data cables are damaged.B Memory has become unseated.C The user has defragmented
题目
Network data cables are damaged.
Memory has become unseated.
The user has defragmented the hard drive.
Processor cooling fan is not functioning.
相似问题和答案
第1题：
A user reports that the Windows update function will not run on the computer but the Internet can be accessed. The user is running an original version of Windows XP Professional. Which of the following is MOST likely the cause？（）
- A、The user has not registered the copy of Windows.
- B、The user has not applied at least Service Pack 1 to their system.
- C、The user does not know what site to access for the updates.
- D、The user needs to flush the DNS cache.
正确答案:B
第2题：
A user reports that when trying to print a document nothing comes out of the printer and states that the only printer in the printer dialog box is ’Microsoft Office Document Image Writer.’ The technician should understand that the problem is that the printer： （）
- A、has not been installed on the user’s computer.
- B、is not turned on.
- C、driver is corrupt.
- D、cable is unplugged.
正确答案:A
第3题：
Digital computer is controlled by internally stored programs and(66) of using common storage for all or part of a program and also for all or part of the data necessary for the execution of the programs; executing user-written or user-designated programs; performing user-designated manipulation of digitally represented discrete data, including.(67) operations and logic operations; and executing programs that(68) themselves during their execution.Analog computer's operations are analogous to the(69) of another system and that accepts, processes, and produces analog data.(70) computer integrates analog computer components and digital computer components by interconnection of digital-to-analog converters and analog-to-digital converters.
A．qualified
B．competent
C．capable
D．able
第4题：
A user reports that the computer’s hard drive is constantly running and the hard drive light is constantly flashing. Which of the following tools would be used to resolve this issue without losing data?（）
- A、chkdsk
- B、fdisk
- C、defrag
- D、format
正确答案:C
第5题：
Bob, a user, reports that his computer is running slower since he viewed an online training presentation. Bob is also receiving an increased amount of spam email. Which of the following is the MOST likely cause of Bob’s issue?（）
- A、Virus
- B、Worm
- C、Network bandwidth
- D、Malware
正确答案:D
第6题：
A user reports that they are unable to open any audio files. Yesterday, the user uninstalled third party music software. Which of the following is the MOST likely cause of the user’s error?（）
- A、The file associations were not returned after the software was uninstalled.
- B、The user is not opening the files correctly.
- C、The uninstalled software has corrupted all the audio files on the computer.
- D、The sound card is not properly configured.
正确答案:A
第7题：
A user reports that the computer is running slowly. After running the SFC， a technician observes that the dllcache folder has become corrupted. Which of the following utilities can be run to repair the contents of the dllcache directory？ （）
- A、FORMAT
- B、SFC
- C、HyperTerminal
- D、DEFRAG
正确答案:B
第8题：
Which three options are network evaluation techniques？ （）
- A、Performing end-user training on the use of antispyware software
- B、Performing virus scans
- C、Scanning a network for active IP addresses and open ports on those IP addresses
- D、Using password-cracking utilities
正确答案:B,C,D
第9题：
An end user reports that their computer is making noise constantly. The technician notes that the hard drive activity light is on frequently. The technician finds plenty of free space on the drive.Which of the following BEST explains why the drive light is continuously active?（）
- A、The system has a fragmented hard drive.
- B、The drive interface needs to be changed.
- C、The user has too many documents on the hard drive.
- D、The system page file has an issue.
正确答案:A
第10题：
You are performing a database recovery because a user’s schema is dropped. While performing the recovery， you use the UNTIL SEQUENCE clause. Which type of database recovery are you performing？（）
- A、 user managed complete recovery
- B、 user managed incomplete recovery
- C、 RMAN-based complete recovery
- D、 RMAN-based incomplete recovery
正确答案:D