The protection of the following PTN equipment belongs to the bundling of multiple ports to provide higher bandwidth and reliability. Which one? (multiple choice)

• A.OAM/BFD
• B.LAG/ML-PPP
• C.Tunnel APS/PW APS
• D.LAG/MC-LAG

Comment: *

Name: *

Email: *

Verification: *

The main difference between SNCP and PP ring is that SNCP adopts tributary board selective reception while PP adopts cross board selective reception.

• A.FALSE
• B.TRUE

Comment: *

Name: *

Email: *

Verification: *

When which of the following pointers is adjusted, the information payload area carries the most information payload

• A.Positive adjustment
• B.No adjustment
• C.All of the above are possible
• D.Negative adjustment

Comment: *

Name: *

Email: *

Verification: *

The main survey points of engineering survey are (multiple choices)

• A.The diameter, length, number of power supply circuits, power supply voltage, power supply power of the power cord
• B.Length of optical fiber, interface type
• C.Impedance, wire diameter, length, and connector of the relay cable
• D.Computer room installation environment such as the height of the computer room, wiring method, ground type, load-bearing capacity of the computer room, seismic requirements, row spacing, etc.

Comment: *

Name: *

Email: *

Verification: *

Regarding the differences between Linux and Solaris operating systems, the following statement is wrong ()

• A.Solaris itself only supports UFS hard disk file system; in Linux, there are many disk file systems to choose from, the default is ext3
• B.All disks need to be recognized by the operating system, but Solaris needs to be set in the sd.conf file, and linux does not
• C.Manage hot-swappable devices through cfgadm in Solaris. When the device is connected in Linux, the system automatically recognizes and configures hot-swappable devices
• D.Linux comes with fssnap command to create and manage file system snapshots. Solaris does not have such a file system snapshot tool

Comment: *

Name: *

Email: *

Verification: *