CompTIA A+ Certification Exam 220-1101 Practice Test 10

Which DVI type does not provide support for analog signal transmission?

• DVI-D

• DVI-A

• DVI-I

• DVI-A/D

Answer explanation

DVI-D is the type that exclusively transmits digital signals and does not support analog signal transmission, unlike DVI-A and DVI-I, which can handle analog signals.

Which statement about DVI-I is correct?

• DVI-I supports only digital video signals

• DVI-I supports only analog video signals

• DVI-I supports both digital and analog video signals

• DVI-I supports audio and video transmission

Answer explanation

DVI-I is designed to support both digital and analog video signals, making it versatile for various display connections. This distinguishes it from other DVI types that may support only one of these signal types.

Which of the following refer to the characteristic features of the signal carried through a VGA cable? (Select 2 answers)

• Audio

• Video and audio

• Digital

• Video

• Analog

Answer explanation

VGA cables transmit video signals in an analog format. They do not carry audio, and the signals are not digital, making 'Video' and 'Analog' the correct characteristics of VGA cable signals.

Examples of cabling types used for mass storage devices include: (Select all that apply)

• SATA

• IDE/PATA

• S/PDIF

• SCSI

• eSATA

Answer explanation

SATA, IDE/PATA, SCSI, and eSATA are all cabling types used for connecting mass storage devices. S/PDIF is primarily used for audio signals, not storage.

What are the characteristic features of SATA revision 1.0? (Select 2 answers)

• 1.5 Gbps data transfer rate

• Maximum cable length of 1 meter

• 3 Gbps data transfer rate

• Maximum cable length of 2 meters

• 6 Gbps data transfer rate

Answer explanation

SATA revision 1.0 features a data transfer rate of 1.5 Gbps and a maximum cable length of 1 meter. The other options refer to later SATA revisions.

The SATA interface specification defines a power connector consisting of:

• 7 pins

• 40 pins

• 34 pins

• 15 pins

Answer explanation

The SATA power connector is defined by the specification to have 15 pins, which provide the necessary power to the device. This makes 15 pins the correct answer, as the other options do not match the SATA standard.

SATA revision 2.0 specifies: (Select 2 answers)

• Maximum cable length of 3 meters

• 6 Gbps data transfer rate

• Maximum cable length of 2 meters

• 3 Gbps data transfer rate

• Maximum cable length of 1 meter

Answer explanation

SATA revision 2.0 supports a data transfer rate of 3 Gbps and specifies a maximum cable length of 1 meter. The other options are incorrect as they refer to different SATA revisions.

A single SATA data cable can connect a motherboard slot with:

• Up to 3 devices

• Up to 2 devices

• Only 1 device

• Up to 4 devices

Answer explanation

A single SATA data cable can connect only 1 device to a motherboard slot. This is because each SATA port is designed to interface with one storage device at a time.

The characteristic features of SATA revision 3.0 include: (Select 2 answers)

• 32 Gbps data transfer rate

• Maximum cable length of 2 meters

• 16 Gbps data transfer rate

• Maximum cable length of 1 meter

• 6 Gbps data transfer rate

Answer explanation

SATA revision 3.0 features a maximum cable length of 1 meter and a data transfer rate of 6 Gbps. The other options, 32 Gbps and 16 Gbps, are incorrect as they pertain to different standards.

The SATA interface defines a data cable connector consisting of:

• 40 pins

• 34 pins

• 15 pins

• 7 pins

Answer explanation

The SATA interface uses a 7-pin connector for data transmission. This is distinct from other interfaces like IDE, which uses 40 or 34 pins. Therefore, the correct answer is 7 pins.