Which unit is used for the transcoding of speech information？（)

A.常用焦距 f 的倒数表示透镜的折射本领，称为焦度。 The reciprocal of the focal length f is often used to represent the refractive power of the lens, which is called the power of focus.#B.当焦距为f =1米时，则其焦度为1 屈光度。 When the focal length is f = 1 m, the power is 1 diopter.#C.在配戴眼镜时，焦度又常用度做单位，1屈光度等于100度。 When wearing glasses, the focal power is often used as a unit, 1 diopter is equal to 100 degrees.#D.焦度是指聚焦的程度，焦距越大，焦度也越大。 The focus refers to the degr

A.常用焦距 f 的倒数表示透镜的折射本领，称为焦度。 The reciprocal of the focal length f is often used to represent the refractive power of the lens, which is called the power of focus.#B.当焦距为f =1米时，则其焦度为1 屈光度。 When the focal length is f = 1 m, the power is 1 diopter.#C.在配戴眼镜时，焦度又常用度做单位，1屈光度等于100度。 When wearing glasses, the focal power is often used as a unit, 1 diopter is equal to 100 degrees.#D.焦度是指聚焦的程度，焦距越大，焦度也越大。 The focus refers to the degr

standard price of the materials for the products is $6 per kilogram； the standard quantity of materials allowed per unit is 1.5 kilograms. During July， 2，000 units of the products were finished， for which 3，200 kilograms of materials were used at a total direct material cost of $18560. A. Calculate the direct material price variance for July. Indicate whether it is favorable （F） or unfavorable （U） and who is generally responsible for this variance. B. Calculate the direct material quantity variance for July. Indicate whether it is favorable （F） or unfavorable （U） and who is generally responsible for this variance. C. Calculate the total direct material cost variance for July. Indicate whether it is favorable （F） or unfavorable （U）.

A.Erlang

B.Bit/second

C.Hertz

D.Subscribers/kHz

E.Subscribers/minute

A. Logical units are similar to VLANs used by other vendors.

B. A logical unit is required for transit interfaces.

C. Frame Relay encapsulation supports one logical unit.

D. Link speed and duplex are configured in the logical unit properties.

A.Logical units are used only when a Layer 2 identifier is present such as a VLAN

B.A logical unit of 0 is required when using a frame-relay DLCI

C.A logical unit is always required

D.Logical units are not required unless ATM or 802.1Q VLAN tagging is configured.

CDMA for cellular system can be described as follows. As with FDMA, each cell is allocated a frequency （71） , when is split into two parts, half for reverse (mobile unit to base station) and half for （72） (base station to mobile unit). For full-duplex （73） , a mobile unit both reverse and forward channels. Transmission is in the form. of direct-sequence spread （74） , which used a chipping code to increase the data rate of the transmission, resulting is an increased signal bandwidth. Multiple access is provided by assigning （75） chipping codes to multiple users, so that the receiver can recover the transmission of an individual unit from multiple transmissions.

A.ware

B.signal

C.bandwidth

D.domain

A. set protocols isis inet6

B. set routing-options router-id router-id

C. set protocols ospf3 area 0 interface all

D. set interface fe-0/0/1 unit 0 family inet6

E. set routing-options ipv6-router-id router-id

A. set interfaces ge-0/0/0.0 address 10.1.1.1/24

B. set interfaces ge-0/0/0.0 family inet address 10.1.1.1/24

C. set interfaces ge-0/0/0 unit 0 family inet address 10.1.1.1/24

D. set interfaces ge-0/0/0 address 10.1.1.1/24