CompTIA认证考试
单选题A computer boots up with the error "CMOS Checksum Failure." Which of the following components needs to be replaced?()
单选题Which processor uses a Slot 1 configuration?()
单选题Which test checks the transmitter and receiver of a local modem?()
多选题A Laser printer keeps getting a "Memory Overflow" error when printing a particular document. Which three of the following are possible fixes?()
单选题Which of the following is NOT a phase of the troubleshooting process?()
单选题A defective CD-ROM drive is replaced with a new CD-ROM drive. The new CD-ROM drive is able to read any CD that it accesses, but music CDs do not play music. What is the MOST likely cause of this problem?()
单选题A user complains that a computer monitor is experiencing a jitter. Replacing the monitor and video card does not fix the problem. Which of the following could be causing the problem?()
单选题A client asks a technician to add a DVD+R burner to a computer system. The technician does this and successfully tests the drive. Three weeks later, the client calls and says that the burner is no longer working. The technician learns that the drive reads CDs and DVDs, but will no longer burn DVDs. When arriving on site, what is the FIRST action that the technician should take?()
单选题What is the FIRST step in diagnosing a completely dead computer that was working fine the day before?()
单选题What is the MOST significant difference between EDO RAM and fast page mode DRAM?()
单选题A user reports that while printing a large document,the local printer fails to print and the document cannot be deleted from the queue. What is the MOST likely cause of the problem?()
单选题Which cleaning product should be used for the inside of a computer?()
单选题A customer receives a CD-RW disk from a computer vendor. The customer tries to read the disk in a computer with a 4X CD-ROM drive and is unable to read any information. The customer tries the CD-RW disk on a 32X CD-ROM drive and it reads correctly. What is the cause of this problem?()
单选题Which components are designed to be conveniently replaced by a service technician?()
单选题What is the FIRST and most important step in system troubleshooting?()
单选题When replacing a power supply, what MUST the technician observe?()
单选题Which IP block is designated for private network use?()
单选题What is the standard IRQ for the keyboard?()
单选题Where are the first computer instructions available when a microcomputer is powering up?()