10-54. Which of the following parity checks uses a
10-55. Each bit in the check frame contains the parity
bit for all the ONEs in a particular
10-56. Which of the following is NOT a function of the
magnetic tape controller?
1. Receives data and commands from the
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?
10-58. Tapes without a write-enabling ring are protected
from the write operation.
10-59. What MTU operation compares the first word of
each record to a specified key?
3. Space file
10-60. During a rewind operation, what signal will cause
tape motion to stop?
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
4. maintenance technician
10-62. What functional area of a magnetic tape unit
decodes external function words from the
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
1. The maintenance panel
2. The system control panel
3. The magnetic tape transport
4. The microprogrammed controller