Assignment 10-Cont.

Fire Controlman Volume 03-Digital Data Systems
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10-54. Which of the following parity checks uses a check frame? 1. Odd 2. Even 3. Lateral 4. Longitudinal 10-55. Each bit in the check frame contains the parity bit for all the ONEs in a particular 1. file 2. frame 3. record 4. track 10-56. Which of the following is NOT a function of the magnetic tape controller? 1. Receives data and commands from the computer 2. Reformats data into frame-size bytes 3. Detects BOT 4. Checks parity 10-57. What is the tape speed for all read, write, and search operations, in inches per second? 1. 100 2. 120 3. 180 4. 200 10-58. Tapes without a write-enabling ring are protected from the write operation. 1. True 2. False 10-59. What MTU operation compares the first word of each record to a specified key? 1. Read 2. Search 3. Space file 4. Write 10-60. During a rewind operation, what signal will cause tape motion to stop? 1. BOT 2. EOT 3. Low tape 4. Start of file tape mark 10-61. MTU operations that can be performed offline using the microprogrammed controller (MPC) are determined by the MPC program installed by the 1. operator 2. computer 3. manufacturer 4. maintenance technician 10-62. What functional area of a magnetic tape unit decodes external function words from the computer? 1. System control panel 2. Maintenance panel 3. Magnetic tape transport 4. Control unit 10-63. The MPC transmits data via which of the following data buses? 1. Source bus only 2. Destination bus only 3. Source and destination buses 4. ROM bus only 10-64. Which of the following control unit functions is NOT performed by the MPC? 1. Frame count checking for lost frames 2. Start/stop delay initiation 3. Read/write signal amplification 4. Search operations comparisons 10-65. Which of the following components contains controls and indicators for manual offline operations? 1. The maintenance panel 2. The system control panel 3. The magnetic tape transport 4. The microprogrammed controller 72

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