[单选题]In managed flight, speed/mach switching:
A. is automatic
B. must be established by flight crew only in climb phase
C. must be established by flight crew in both climb and descent phases

[单选题]At approach phase, the managed speed target is the minimum ground speed target calculated by ______
A. flight management (FM) part of FMGS
B. flight guidance (FG) part of FMGS
C. MCDU

[单选题]In managed descent profile, the flight guidance part of FMGC gives partial priority to ____
A. thrust grade
B. target speed/mach number
C. descent track

[单选题]The flight envelope limit speed used by flight management and guidance system is calculated by ______
A. ADIRS(air data inertia reference system）
B. FAC(flight augmentation computer）
C. each FMGC after pilot inputs weight on MCDU

[填空题]packet switching

[单选题]当出现“SPEED，SPEED，SPEED”的语音警告时表示：
A.速度超限
B.当前推力不足以通过俯仰操纵来恢复正常飞行
C.速度偏离选择或管理的速度

[单选题]What is the mach number above which it is displayed？
A.0.4
B.0.5
C.0.55

[简答题]The new built telephone switching network should be based on IP exchange technology, and should be carried by data communications network.

[单选题]DES provides managed vertical guidance along the descent path. Which of the following statement is correct?
A. The system computes the profile backwards from the “deceleration point” up to the “top of descent”, with respect to the speed and altitude constraints at the deceleration point, the guidance begins the deceleration to VAPP, to be reached at 1000 ft above touchdown on the final descent path.
B. If the aircraft is above the descent profile, the speed will increase toward the upper limit of the managed speed range. If the speed reaches the upper limit, the aircraft will maintain the speed but will deviate from the profile (autothrust at idle)
C. Both A and B are correct

[单选题]在PFD上出现MACH（马赫）故障旗（红色），表示：
A.马赫数据失效
B.马赫数低于0.5
C.马赫数超过MMAX

[单选题]30 An LTM Specialist upgrades the switching infrastructure and the backend servers on the LAN segments.
The LTM Specialist notices a 20% memory usage increase on the BIG-IP device while handling the same number of concurrent connections.
A comparison of statistics pre-upgrade and post-upgrade shows a significant reduction on the following:
-RTT between the BIG-IP device and the backend servers
-Packet drops in the switch Time to First Byte (TTFB)
The LTM Specialist is concerned with the scalability of the number of concurrent connections with the new memory usage.
Which setting should be changed to reduce the memory usage on the BIG-IP device?
A.Reduce the proxy buffer high setting on the server-side TCP profile
B.Increase the receive window of the client-side TCP profile
C.Increase the proxy buffer high setting on the server-side TCP profile
D.Reduce the idle of the client-side TCP profile Explanation
After adjusting the architecture, the network quality becomes better. With the connection unchanged the memory usage increase by 20%. It means that the sending speed of the server is higher than the receiving speed of the client. F5 caches more content on the memory and causes the memory usage to....

[单选题]自动推力工作时，可以人工选择SPD/MACH目标低于VLS或高于VMAX：
A.正确
B.错误

[单选题]During approach, flight augmentation computer calculates the speed tendency and the minimum selectable speed (VLS). The tendency limit or VLS indicates the speed the aircraft will reach in the future 10 seconds and _____ times of VS1g under any configuration.
A.1.13
B.1.23
C.1.33

[单选题]Flight maneuvering load acceleration limits on clean configuration is:
A. –1 g to 2.5 g
B. - 1 g to 2 g
C. 0 g to 2.5 g

[单选题]Critical flight phases refer to:
A.cruise flight phase
B.climb & descent operation phase
C.phases including taxiing, takeoff, landing, and all flight operations carried out bellow 3000 meters (10,000 feet) except cruise flight

[单选题]In MANAGED mode of guidance, if rotating but not pulling out the knob, how many seconds does the data of altitude window keep to make the dotted line appear again?
A. 10 seconds
B. 45 seconds
C. inapplicable

[填空题]speed measurement

[填空题]release speed