[单选题]在安全通信中，S将所发送的信息使用（ ）进行数字签名，T收到该消息后可利用（请作答此空）验证该消息的真实性。
A.S的公钥
B.S的私钥
C.T的公钥
D.T的私钥

[单选题]在安全通信中，S 将所发送的信息使用（请作答此空）进行数字签名，T 收到该消息后可利用（ ）验证该消息的真实性。
A.S 的公钥
B.S 的私钥
C.T 的公钥
D.T 的私钥

[单选题]在安全通信中，S将所发送的信息使用（请作答此空）进行数字签名，T收到该消息后可利用（ ）验证该消息的真实性。
A.S的公钥
B.S的私钥
C.T的公钥
D.T的私钥

[单选题]在安全通信中，S 将所发送的信息使用（ ）进行数字签名，T 收到该消息后可利用（ ）验证该消息的真实性。
A.S 的公钥
B.S 的私钥
C.T 的公钥
D.T 的私钥

[单选题]在安全通信中，T 收到该消息后可利用（ ）验证该消息的真实性。
A.S 的公钥
B.S 的私钥
C.T 的公钥
D.T 的私钥

[单选题]甲和乙要进行通信，甲对发送的消息附加了数字签名，乙收到该消息后利用（ ）验证该消息的真实性。
A.甲的公钥
B.甲的私钥
C.乙的公钥
D.乙的私钥

[单选题]和乙要进行通信，甲对发送的消息附加了数字签名，乙收到该消息后利用（44）验证该消息的真实性。
A.甲的公钥
B.甲的私钥
C.乙的公钥
D.乙的私钥

[单选题]Certificates are（请作答此空）documents attesting to the （ ） of a public key to an individual or other entity. They allow verification of the claim that a given public key does in fact belong to a given individual. Certificates help prevent someone from using a phony key to（ ）someone else. In their simplest form, Certificates contain a public key and a name. As commonly used, a Certificate also contains an （ ）date, the name of the CA that issued the Certificate, a serial number, and perhaps other information. Most importantly, it contains the digital（ ）of the certificate issuer. The most widely accepted format for certificates is X.509, thus, Certificates can be read or written by any application complying with X.509.
A.text
B.data]
C.digital
D.structured]

[单选题]（请作答此空）是企业与消费者个人之间的电子商务，如京东、当当等，（ 此空不作答）是指线上购买线下的的商品和服务，实体店提货或享受服务，特别适合餐饮、院线、会所等服务连锁企业。
A.020
B.B2B
C.B2C
D.C2C

[单选题]（此空不作答 ）是企业与消费者个人之间的电子商务，如京东、当当等，（请作答此空）是指线上购买线下的的商品和服务，实体店提货或享受服务，特别适合餐饮、院线、会所等服务连锁企业。 A.020
A.B2B
B.B2C
C.C2
D.

[单选题]The Hypertext Transfer Protocol,the Web's（请作答此空）protocol,is at the heart of the Web.HTTP is implemented in two programs:a（ ）program and a server program.The client program and server program executing on different end systems,talk to each other by（ ）HTTP messages.HTTP defines how Web clients request Web pages from servers and how servers transfer web pages to clients.when a user（ ）a web page,the browser sends http request messages for the objects in the page to the server.The server（ ）the requests and responds with http response messages that contain the objects.
A.transport-layer
B.application-layer
C.network-layer
D.link-layer

[单选题]（请作答此空）analysis emphasizes the drawing of pictorial system models to document and validate both existing and/or proposed systems.Ultimately,the system models become the（ ）for designing and constructing an improved system.（ ）is such a technique.The emphasis in this technique is process-centered.Systems analysts draw a series of process models called（ ）、（ ）is another such technique that integrates data and process concerns into constructs called objects.
A.Prototyping
B.Accelerated
C.Model-driven
D.Iterative

[单选题]The objective of (请作答此空) is to determine what parts of the application software will be assigned to what hardware. The major software components of the system being developed have to be identified and then allocated to the various hardware components on which the system will operate. All software systems can be divided into four basic functions. The first is (72). Most information systems require data to be stored and retrieved, whether a small file, such as a memo produced by a word processor, or a large database, such as one that stores an organization's accounting records. The second function is the (73), the processing required to access data, which often means database queries in Structured Query Language. The third function is the (74), which is the logic documented in the DFDs, use cases, and functional requirements. The fourth function is the presentation logic, the display of information to the user and the acceptance of the user's commands. The three primary hardware components of a system are (75).
A.architecture design
B.modular design
C.physical design
D.distribution design

[单选题]MIDI enables people to use（请作答此空）computers and electronic musical instruments.There are actually three components to MIDI,the communications"（ ）",the Hardware interface and a distribution（ ）called"Standard MIDI Files".In the context of the WWW,the most interesting component is the（ ）Format.In principle,MIDI files contain sequences of MIDI Protocol messages:However,when MIDI Protocol（ ）are stored in MIDI files,the events are also time-stamped for playback in the proper sequence.Music delivered by MIDI files is the most common use of MIDI today.
A.personal
B.electronic
C.multimedia
D.network

[单选题]TCP/IP（请作答此空）layer protocols provide services to the application（ ）running on a computer.The application layer does not define the application itself,but rather it defines（ ）that applications need--like the ability to transfer a file in the case of HTTP.In short,the application layer provides an（ ）between software running on a computer and the network itself.The TCP/IP application layer includes a relatively large number of protocols,with HTTP being only one of those.The TCP/IP（ ）layer consists of two main protocol options--the Transmission Control Protocol（TCP）and the User Datagram Protocol（UDP）.
A.application
B.transport
C.link
D.network