You are troubleshooting a mobile device with no sound output from the headset or external speakers.

Which of the following steps should you take first?
a. Verify the physical volume control is turned up.
b . Reset the device to factory defaults.
1 . c. Perform a manual OS update.
d. Close any unused apps.

What is the full meaning of rfid in computer

Which best describes the condition under which the unicode output is the same as plain text?

Consider a byte-addressable computer with 16mb of main memory, a cache capable of storing a total of 64kb of data and block size of 32 bytes. (a) how many bits in the memory address? (b) how many blocks are in the cache? (c) specify the format of the memory address, including names and sizes, when the cache is: 1. direct-mapped 2. 4-way set associative 3. fully associative