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信息安全工程師每日一練試題內(nèi)容(2022/10/1)
試題1
下列技術(shù)中,不能預(yù)防重放攻擊的是()。查看答案
試題參考答案:C
試題2
Kerberos 是一個網(wǎng)絡(luò)認(rèn)證協(xié)議,其目標(biāo)是使用密鑰加密為客戶端/服務(wù)器應(yīng)用程序提供強(qiáng)身份認(rèn)證。一個 Kerberos 系統(tǒng)涉及四個基本實(shí)體:Kerberos 客戶機(jī)、認(rèn)證服務(wù)器 AS、票據(jù)發(fā)放服務(wù)器TGS、應(yīng)用服務(wù)器。其中,為用戶提供服務(wù)的設(shè)備或系統(tǒng)被稱為( )查看答案
試題參考答案:D
試題3
以下關(guān)于網(wǎng)絡(luò)釣魚的說法中,不正確的是( )。查看答案
試題參考答案:B
試題4
(1)is the science of hiding information. Whereas the goal of cryptography is to make data unreadable by a third party. the goal of steganography is to hide the data from a third party. In this article, I will discuss what steganography is, what purposes it serves, and will provide an example using available software.
There are a large number of steganographic (2)that most of us are familiar with (especially if you watch a lot of spy movies), ranging from invisible ink and microdots to secreting a hidden message in the second letter of each word of a large body of text and spread spectrum radio communication. With computers and networks, there are many other ways of hiding informations, such as:
Covert channels (c,g, Loki and some distributed denial-of-service tools use the Internet Control (3)Protocol, or ICMP, as the communication channel between the “bad guy”and a compromicyed system)
Hidden text within Web pages
Hiding files in “plain sight”(c,g. what better place to “hide”a file than with an important sounding name in the c:\winnt system32 directory)
Null ciphers(c,g, using the first letter of each word to form a hidden message in an otherwise innocuous text)
steganography today, however, is significantly more (4)than the example about suggest, allowing a user to hide large amounts of information within image and audio. These forms of steganography often are used in conjunction with cryptography so the information is double protected; first it is encrypted and then hidden so that an advertisement first. find the information ( an often difficult task in and of itself) and the decrypted it.
The simplest approach to hiding data within an image file is called (5)signature insertion. In this method, we can take the binary representation of the hidden data and the bit of each byte within the covert image. If we are using 24-bit color the amount and will be minimum and indiscriminate to the human eye.
(1)A、Cryptography
B、Geography
C、Stenography
D、Steganography
(2)A、methods
B、software
C、tools
D、services
(3)A、Member
B、Management
C、Message
D、Mail
(4)A、powerful
B、sophistication
C、advanced
D、easy
(5)A、least
B、most
C、much
D、less
查看答案
試題參考答案:D、A、C、B、A
試題5
以下關(guān)于BLP安全模型的表述中, 錯誤的是()查看答案
試題參考答案:C
試題6
( )能有效防止重放攻擊。查看答案
試題參考答案:B
試題7
下列關(guān)于數(shù)字簽名的說法正確的是()查看答案
試題參考答案:D
試題8
以下關(guān)于IPSec協(xié)議的敘述中,正確的是()
A、IPSec協(xié)議是解決IP協(xié)議安全問題的一種方案
B、IPSec協(xié)議不能提供完整性
C、IPSec協(xié)議不能提供機(jī)密性保護(hù)
D、IPSec協(xié)議不能提供認(rèn)證功能
查看答案
試題參考答案:A
試題9
Snort是一款開源的網(wǎng)絡(luò)入侵檢測系統(tǒng),能夠執(zhí)行實(shí)時流量分析和IP協(xié)議網(wǎng)絡(luò)的數(shù)據(jù)包記錄。以下不屬于Snort主要配置模式的是()查看答案
試題參考答案:B
試題10
最小化配置服務(wù)是指在滿足業(yè)務(wù)的前提下,盡量關(guān)閉不需要的服務(wù)和網(wǎng)絡(luò)端口,以減少系統(tǒng)潛在的安全危害。以下實(shí)現(xiàn)Linux系統(tǒng)網(wǎng)絡(luò)服務(wù)最小化的操作,正確的是( )。查看答案
試題參考答案:C
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