CompTIA CompTIA Certifications FC0-U61 Questions & Answers

• Question 331:

  Which of the following is an example of multifactor authentication?

  A. Password and passphrase

  B. Fingerprint and retina scan

  C. Hardware token and smartphone

  D. Smart card and PIN

  Correct Answer: D

• Question 332:

  Which of the following operating systems do not require extensions on files to execute a program? (Choose two.)

  A. Windows 7

  B. Windows 8

  C. UNIX

  D. Windows Server 2012

  E. Android

  F. Linux

  Correct Answer: CF

• Question 333:

  A technician needs to install a wireless router for a client that supports speeds up to 11Mbps and operates on the 2.4GHz band. Which of the following should the technician select?

  A. 802.11a

  B. 802.11b

  C. 802.11g

  D. 802.11n

  Correct Answer: B

  802.11a (1999) 54 Mbps 5 GHz 802.11b (1999)11 Mbps 2.4 GHz 802.11g (2003) 54 Mbps 2.4 GHz 802.11n (2009) 72.2 Mbps/stream (Single Channel)150 Mbps/stream (Bonded Channels) 2.4/5 GHz 802.11ac (2013) 1.7 Gbps (at time of writing)5 GHz

• Question 334:

  Which of the following is MOST likely used to represent international text data?

  A. ASCII

  B. Octal

  C. Hexadecimal

  D. Unicode

  Correct Answer: D

  Unicode is the universal character encoding used to process, store and facilitate the interchange of text data in any language.

• Question 335:

  For a disaster recovery exercise, a company wants to ensure customer data is recovered before operational data. This is an example of:

  A. redundancy.

  B. replication.

  C. prioritization.

  D. fault tolerance.

  Correct Answer: C

• Question 336:

  A technician is called to replace a display for a workstation. Which of the following would MOST likely be used to connect the display to the workstation?

  A. USB

  B. NFC

  C. DSL

  D. DVI

  Correct Answer: D

• Question 337:

  Ann, the president of a company, has requested assistance with choosing the appropriate Internet connectivity for her home. The home is in a remote location and has no connectivity to existing infrastructure. Which of the following Internet service types should MOST likely be used?

  A. Fiber

  B. DSL

  C. Cable

  D. Satellite

  Correct Answer: D

• Question 338:

  A database administrator finds that a table is not needed in a relational database. Which of the following commands is used to completely remove the table and its data?

  A. UPDATE

  B. DELETE

  C. ALTER

  D. DROP

  Correct Answer: D

  CREATE—this command can be used to add a new database on the RDBMS server (CREATE DATABASE) or to add a new table within an existing database (CREATE TABLE). The primary key and foreign key can be specified as part of

  the table definition.

  ALTER TABLE—this allows you to add, remove (drop), and modify table columns (fields), change a primary key and/or foreign key, and configure other constraints. There is also an ALTER DATABASE command, used for modifying

  properties of the whole database, such as its character set.

  DROP—this is the command used to delete a table (DROP TABLE) or database (DROP DATABASE). Obviously, this also deletes any records and data stored in the object.

  CREATE INDEX-specifying that a column (or combination of columns) is indexed speeds up queries on that column. The tradeoff is that updates are slowed down slightly (if the column is not suitable for indexing, updates may be slowed

  down quite a lot.) The DROP INDEX command can be used to remove an index.

  There are also SQL commands allowing permissions (access controls) to be configured. These are discussed in the upcoming pages.

• Question 339:

  Which of the following network protocols will MOST likely be used when sending and receiving Internet email? (Choose two.)

  A. SMTP

  B. POP3

  C. SNMP

  D. DHCP

  E. ICMP

  F. SFTP

  Correct Answer: AB

• Question 340:

  A technician is installing a new wireless network and wants to secure the wireless network to prevent unauthorized access. Which of the following protocols would be the MOST secure?

  A. WPA

  B. SSID

  C. WEP

  D. WPA2

  Correct Answer: D