4-23. Who is responsible for controlling the dissemination of classified material  within  the  command? 1. Command Security Manager 2. Administrative officer 3. Executive officer 4. Commanding officer 4-24. Who is delegated the responsibility to ensure personnel are instructed on prevention of unauthorized disclosure  of  classified information? 1. Command Security Manager 2. Administrative officer 3. Commanding officer 4. Executive officer 4-25. Top  Secret  documents  cannot  be reproduced without the permission of  which  of  the  following authorities? 1. Department head 2. Security manager 3. Commanding officer 4. Issuing or higher authority 4-26. After a Top Secret document has been transferred, downgraded or destroyed,  the  record  of  disclosure should be maintained for how many years? 1. 1 2. 2 3. 3 4. 5 4-27. There is no requirement to maintain records  of  receipts,  distribution, or disposition on which of the following  types  of  classified material? 1. Secret 2. Top Secret 3. Confidential 4-28. Which of the following instructions prescribes that classified correspondence  be  serially  numbered by the originator for each calendar year? 1. SECNAVINST  5215.1 2. SECNAVINST  5216.5 3. OPNAVINST   5215.1 4. OPNAVINST   5216.5 4-29. At least how many times must the upper and lower sections of a fabric  typewriter  ribbon  be  cycled before it can be treated as unclassified? 1. Five 2. Seven 3. Three 4. Nine 4-30. A system of security checks at the close of each working day must be instituted  to  make  sure  that classified material held by a command  is  properly  protected. 1. True 2. False 4-31. Which  of  the  following  classes  of classified  material  should  not  be mailed? 1. Secret 2. Top  Secret 3. Confidential 4-32. Receipts  for  classified  material should  be  maintained  for  a  minimum of how many years? 1. 1 2. 2 3. 3 4. 4 4-33. Whenever classified material is transmitted,  it  should  be  enclosed in two opaque, sealed envelopes. 1. True 2. False 21