单选题A position that is obtained by using two or more intersecting lines of position，taken at nearly the same time，is a(n)（）.A estimated positionB fixC running fixD dead-reckoning position

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单选题

A position that is obtained by using two or more intersecting lines of position，taken at nearly the same time，is a(n)（）.

estimated position

fix

running fix

dead-reckoning position

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相似问题和答案

第1题：

A socket is basically an end point of a communication link between two applications. Sockets that extend over a network connect two or more applications running on(61)computers attached to the network. A socket(62)two addresses:(63). Sockets provide a(64)communication channel between one or more systems.There are(65)sockets separately using TCP and UDP.

A．unique

B．separate

C．same

D．dependent

正确答案：B

第2题：

A position that is obtained by using two or more intersecting lines of position taken at nearly the same time，is a(n) ______.

A.fix

B.running fix

C.estimated position

D.dead-reckoning position

正确答案：A

第3题：

We think it necessary to prevent sound ( ), as it is getting more and more serious.

A、condition

B、invention

C、pollution

D、position

参考答案：C

第4题：

Which two of the following statements are true about HSRP load sharing?（） (Choose two)

A、It is achieved by using more than one HSRP group.
B、It is done in regards to either round robin or weight basis.
C、It is used to offload the active router in a certain HSRP group.
D、Single group HSRP is used to achieve more efficient link utilization.
E、The return traffic is influenced by HSRP load sharing configuration.

正确答案:A,C

第5题：

Which of these technologies is characterized as being a multipoint Layer 2 VPN that connects two or more customer devices using Ethernet bridging techniques?（）

A、DPT
B、MPLS
C、VPLS
D、CWDM
E、DWDM
F、SONET/SDH

正确答案:C

第6题：

Which of these technologies is characterized as being a multipoint Layer 2 VPN that connects two or more customer devices using Ethernet bridging techniques?()

A.DPT

B.MPLS

C.VPLS

D.CWDM

E. DWDM

F. SONET/SDH

参考答案：C

第7题：

My position has been obtained ______ astronomical observation．

A.with

B.from

C.on

D.by

正确答案：D

第8题：

Examine the description of the MARKS table:SUBJ1 and SUBJ2 indicate the marks obtained by a student in two subjects.Examine this SELECT statement based on the MARKS table:What is the result of the SELECT statement?（）

A. The statement executes successfully and returns the student ID and sum of all marks for each student who obtained more than the average mark in each subject.

B. The statement returns an error at the SELECT clause.

C. The statement returns an error at the WHERE clause.

D. The statement returns an error at the ORDER BY clause.

参考答案：C

第9题：

What two descriptions best define DWDM？（）

A、 a WDM system that is compatible with EDFA technology
B、 an optical technology for transmitting up to 16 channels over multiple fiber strands
C、 an optical technology for transmitting up to 32 channels over multiple fiber strands
D、 a technology for transmitting multiple optical signals using less sophisticated transceiver designthen CWDM
E、 a technology for transmitting more closely packed optical signals using more sophisticatedtransceiver designs than CWDM

正确答案:A,E

第10题：

An IPsec tunnel is established on an SRX Series Gateway on an interface whose IP address was obtained using DHCP.Which two statements are true? （）(Choose two.)

A、Only main mode can be used for IKE negotiation
B、A local-identity must be defined
C、It must be the initiator for IKE
D、A remote-identity must be defined

正确答案:B,C

A position that is obtained by using two or more intersectin

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