Two devices are mentioned which were used to measure time in the ancient times. They are _

An exciting and original topic must be any two interests combined.

A．Right

B．Wrong

C．Not mentioned

The International Science Olympiads are held once every two years.

A．Right

B．Wrong

C．Not mentioned

An exciting and original topic must be any two interests combined.

A．Right

B．Wrong

C．Not mentioned

A.copier

B.microwave oven

C.toaster

D.cordless phone

E.IP phone

F.AM radio

A. Call management software

B. Media Convergence Servers (MCSs)

C. Voice gateways

D. IP telephones

A．Allowing simultaneous frame. transmissions

B．Increasing the size of broadcast domains

C．Increasing the maximum length of UTP cabling between devices

D．Filtering frames based on MAC addresses

E．Decreasing the number of collision domains

A.Two sides should in advance negotiate service VLAN on NNI interconnection ports, bind interface IP address of this VLAN, and notify each other of service loopback address (corresponding to LSR ID of Huawei's PTN devices)

B.Tunnel labels of the two sides must be the same.

C.PW labels of the two sides may be different.

D.Packet delay (corresponding to packet load delay of Huawei) at two sides must have the same configuration. It is suggested both sides use 500us.

A.multipoint

B.simplex

C.point-to-point

D.wireless

A.NNI side lines of the devices at two ends are wrongly connecte

B.Time sync related configurations of the devices at two ends are incorrect.

C.MAC addresses of the devices at two ends are the sam

D.Clock source configurations of the two devices are incorrect.

A.LOS

B.REI

C.BIP-B3

D.RDI