信息安全工程師當(dāng)天每日一練試題地址:m.xiexiliangjiufa.com/exam/ExamDay.aspx?t1=6
往期信息安全工程師每日一練試題匯總:m.xiexiliangjiufa.com/class/27/e6_1.html
信息安全工程師每日一練試題(2021/3/7)在線測(cè)試:m.xiexiliangjiufa.com/exam/ExamDay.aspx?t1=6&day=2021/3/7
點(diǎn)擊查看:更多信息安全工程師習(xí)題與指導(dǎo)
信息安全工程師每日一練試題內(nèi)容(2021/3/7)
試題1: 信息隱藏主要研究如何將機(jī)密信息秘密隱藏于另一公開的信息中。以下關(guān)于利用多媒體數(shù)據(jù)來隱藏機(jī)密信息的敘述中,錯(cuò)誤的是()。 甲不但懷疑乙發(fā)給他的被人篡改,而且懷疑乙的公鑰也是被人冒充的,為了消除甲的疑慮,甲和乙決定找一個(gè)雙方都信任的第三方來簽發(fā)數(shù)字證書,這個(gè)第三方為()
A、國(guó)際電信聯(lián)盟電信標(biāo)準(zhǔn)分部(ITU-T)
B、國(guó)家安全局(NSA)
C、認(rèn)證中心(CA)
D、國(guó)家標(biāo)準(zhǔn)化組織(ISO)
(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
當(dāng)客戶需要訪問組織信息資產(chǎn)時(shí),下面正確的做法是?()
A.應(yīng)向其傳達(dá)信息安全要求及應(yīng)注意的信息安全問題。
B.盡量配合客戶訪問信息資產(chǎn)。
C.不允許客戶訪問組織信息資產(chǎn)。
D.不加干涉,由客戶自己訪問信息資產(chǎn)。
不屬于物理安全威脅的是()
A、自然災(zāi)害
B、物理攻擊
C、硬件故障
D、系統(tǒng)安全管理人員培訓(xùn)不夠
溫馨提示:因考試政策、內(nèi)容不斷變化與調(diào)整,信管網(wǎng)網(wǎng)站提供的以上信息僅供參考,如有異議,請(qǐng)以權(quán)威部門公布的內(nèi)容為準(zhǔn)!
信管網(wǎng)致力于為廣大信管從業(yè)人員、愛好者、大學(xué)生提供專業(yè)、高質(zhì)量的課程和服務(wù),解決其考試證書、技能提升和就業(yè)的需求。
信管網(wǎng)軟考課程由信管網(wǎng)依托10年專業(yè)軟考教研傾力打造,官方教材參編作者和資深講師坐鎮(zhèn),通過深研歷年考試出題規(guī)律與考試大綱,深挖核心知識(shí)與高頻考點(diǎn),為學(xué)員考試保駕護(hù)航。面授、直播&錄播,多種班型靈活學(xué)習(xí),滿足不同學(xué)員考證需求,降低課程學(xué)習(xí)難度,使學(xué)習(xí)效果事半功倍。
發(fā)表評(píng)論 查看完整評(píng)論 | |