Which of the following is the most commonly used single-factor authentication method?

Sean suspects that an individual in his company is smuggling out secret information despite his company's careful use of data loss prevention systems. He discovers that the suspect is posting photos, including the one shown here, to public Internet message boards. What type of technique may the individuals be using to hide messages inside this image?

A. Watermarking B. VPN C. Steganography D. Covert timing channel

You can't convert a domain local group to a universal group.

Answer the following statement true (T) or false (F)