Grade 11 IT Revision

A Quad Core processor with hyperthreading has

• 4 physical processing cores and shared L1 cache

• 8 physical processing cores and 4 logical processors

• 4 virtual processing cores and shared L1 cache

• 4 physical processing cores and 8 logical processors

A software interrupt:

• can also be issued by hardware devices

• is sent by the software application to the CPU

• will always result in a runtime error

• will appear in an interrupt table

Which of the following is an advantage of computer mobility?

• less need for office space

• no servers are required

• a smarter workforce

• computers are less vulnerable to viruses

The battery life of a laptop is affected by?

• screen brightness

• processor speed

• number of active processes

• all of the above

Recommended computer management tasks do not include:

• changing the screen resolution

• drive defragmentation

• backup and restoration testing

• antivirus updates

Graphics cards often have dedicated RAM and processors:

• because a graphics card's RAM is made from SRAM

• because the CPU has limited cache

• to reduce the load on the system RAM and CPU

• because normal system RAM is volatile

Which of the following devices provides the lowest processing power:

• Notebook

• Chromebook

• Tablet

• Laptop

Software that is owned by a company and the source code is kept a secret.

• Open source software

• Proprietary software

• Free Software foundation

• System software

Multitasking is a technique...

• that reduces the number of accesses to a slower device or system

• where an operating system allows programs to split themselves into multiple tasks that can be run at the same time.

• whereby the operating system divides the programs / threads between multiple CPUs.

• where the operating system splits the CPU time between multiple programs, and so the computer seems to be doing more than one task at a time.

Modular design in computing means

• The computer is designed in an environmentally friendly way.

• The computer is made up of different parts that make it easy for upgrading.

• The computer is mobile.

• The computer adapt to different modes.