売上No.1 312-50v13問題集オンライン版でスキマ時間を有効活用

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ECCouncil Certified Ethical Hacker Exam (CEHv13) 認定 312-50v13 試験問題 (Q326-Q331):

質問 # 326
Scenario1:
1.Victim opens the attacker's web site.
2.Attacker sets up a web site which contains interesting and attractive content like 'Do you want to make
$1000 in a day?'.
3.Victim clicks to the interesting and attractive content URL.
4.Attacker creates a transparent 'iframe' in front of the URL which victim attempts to click, so victim thinks that he/she clicks to the 'Do you want to make $1000 in a day?' URL but actually he/she clicks to the content or URL that exists in the transparent 'iframe' which is setup by the attacker.
What is the name of the attack which is mentioned in the scenario?

正解：C

解説：
https://en.wikipedia.org/wiki/Clickjacking
Clickjacking is an attack that tricks a user into clicking a webpage element which is invisible or disguised as another element. This can cause users to unwittingly download malware, visit malicious web pages, provide credentials or sensitive information, transfer money, or purchase products online.
Typically, clickjacking is performed by displaying an invisible page or HTML element, inside an iframe, on top of the page the user sees. The user believes they are clicking the visible page but in fact they are clicking an invisible element in the additional page transposed on top of it.


質問 # 327
in this form of encryption algorithm, every Individual block contains 64-bit data, and three keys are used, where each key consists of 56 bits. Which is this encryption algorithm?

正解：C

解説：
Triple DES is another mode of DES operation. It takes three 64-bit keys, for an overall key length of 192 bits.
In Stealth, you merely type within the entire 192-bit (24 character) key instead of entering each of the three keys individually. The Triple DES DLL then breaks the user-provided key into three subkeys, padding the keys if necessary in order that they are each 64 bits long. The procedure for encryption is strictly an equivalent as regular DES, but it's repeated 3 times , hence the name Triple DES. the info is encrypted with the primary key, decrypted with the second key, and eventually encrypted again with the third key.Triple DES runs 3 times slower than DES, but is far safer if used properly. The procedure for decrypting something is that the same because the procedure for encryption, except it's executed in reverse. Like DES, data is encrypted and decrypted in 64-bit chunks. Although the input key for DES is 64 bits long, the particular key employed by DES is merely 56 bits long . the smallest amount significant (right-most) bit in each byte may be a parity , and will be set in order that there are always an odd number of 1s in every byte. These parity bits are ignored, so only the seven most vital bits of every byte are used, leading to a key length of 56 bits. this suggests that the effective key strength for Triple DES is really 168 bits because each of the three keys contains 8 parity bits that aren't used during the encryption process.Triple DES ModesTriple ECB (Electronic Code Book)* This variant of Triple DES works precisely the same way because the ECB mode of DES.* this is often the foremost commonly used mode of operation.Triple CBC (Cipher Block Chaining)* This method is extremely almost like the quality DES CBC mode.* like Triple ECB, the effective key length is 168 bits and keys are utilized in an equivalent manner, as described above, but the chaining features of CBC mode also are employed.* the primary 64-bit key acts because the Initialization Vector to DES.* Triple ECB is then executed for one 64-bit block of plaintext.* The resulting ciphertext is then XORed with subsequent plaintext block to be encrypted, and therefore the procedure is repeated.* This method adds an additional layer of security to Triple DES and is therefore safer than Triple ECB, although it's not used as widely as Triple ECB.


質問 # 328
Bob is acknowledged as a hacker of repute and is popular among visitors of "underground" sites. Bob is willing to share his knowledge with those who are willing to learn, and many have expressed their interest in learning from him. However, this knowledge has a risk associated with it, as it can be used for malevolent attacks as well.
In this context, what would be the most effective method to bridge the knowledge gap between the "black" hats or crackers and the "white" hats or computer security professionals?

正解：B

解説：
The most effective long-term strategy to reduce the gap between black hats and white hats is through education. Training individuals in areas such as:
Risk analysis
Vulnerability identification
Defensive mechanisms and countermeasures
helps foster a deeper understanding of cybersecurity and ethical responsibilities.
From CEH v13 Official Guide:
Module 1: Introduction to Ethical Hacking
Section: Ethics and Legal Issues
Subsection: Bridging the Hacker Mindset
The guide states:
"Educating individuals on proper cybersecurity techniques and the consequences of malicious hacking is critical to transforming the skillset of potential black hats into productive white hat professionals. Providing structured knowledge through training, books, and ethical hacking certifications empowers aspiring hackers to use their skills positively." Incorrect Options:
B: Useful for operations, but doesn't bridge a knowledge gap.
C: Lowering certification standards can reduce industry credibility.
D: Involves a specific audience and doesn't address the broader knowledge gap.
Reference:CEH v13 Study Guide - Module 1: Introduction to Ethical Hacking # Subsection: Hacker Mindsets
& Security EducationEC-Council Code of Ethics


質問 # 329
An Intrusion Detection System (IDS) has alerted the network administrator to a possibly malicious sequence of packets sent to a Web server in the network's external DMZ. The packet traffic was captured by the IDS and saved to a PCAP file. What type of network tool can be used to determine if these packets are genuinely malicious or simply a false positive?

正解：B


質問 # 330
MX record priority increases as the number increases. (True/False.)

正解：B

解説：
MX (Mail Exchange) records in DNS define the mail servers responsible for receiving email for a domain.
Each MX record has a priority value.
Important concept:
A lower number indicates a higher priority.
Email servers attempt delivery to the mail server with the lowest priority first.
For example:
If MX records are:
10 mail1.example.com
20 mail2.example.com
Then mail1 will be tried first. If it fails, mail2 will be used.
So the statement "MX record priority increases as the number increases" is false.
Reference:CEH v13 Study Guide - Module 3: DNS Records # MX Record Priority ExplanationRFC 974 - Mail Routing and the Domain System
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質問 # 331
......

ECCouncil 312-50v13試験を難しく感じる人に「やってもいないのに、できないと言わないこと」を言いたいです。我々Xhs1991へのECCouncil 312-50v13試験問題集は専業化のチームが長時間で過去のデータから分析研究された成果で、あなたを試験に迅速的に合格できるのを助けます。依然躊躇うなら、弊社の無料のECCouncil 312-50v13デモを参考しましょう。そうしたら、ECCouncil 312-50v13試験はそんなに簡単なことだと知られます。

312-50v13基礎訓練: https://www.xhs1991.com/312-50v13.html

購入意向があれば、Xhs1991 312-50v13基礎訓練のホームページをご覧になってください、Xhs1991のECCouncilの312-50v13試験トレーニング資料はXhs1991のIT専門家たちが研究して、実践して開発されたものです、不合格になればXhs1991 312-50v13基礎訓練は全額返金のことができますから、絶対損にならないです、312-50v13学習ガイドの内容は、すべてのレベルの候補者にとって非常に簡単に理解できます、ECCouncil 312-50v13絶対合格 あなたは100%合格率を達成するのは難しいと考えるかもしれません、今、312-50v13最新の練習問題をまとめてみましょう 無料アップデット。

先日海外から客が来たんでタオルとかあるし、シャンプーのたぐい312-50v13も彼が置いていったから、好きに使っていいよ、店の場所はわかるよね、購入意向があれば、Xhs1991のホームページをご覧になってください、Xhs1991のECCouncilの312-50v13試験トレーニング資料はXhs1991のIT専門家たちが研究して、実践して開発されたものです。

更新する-完璧な312-50v13絶対合格試験-試験の準備方法312-50v13基礎訓練

不合格になればXhs1991は全額返金のことができますから、絶対損にならないです、312-50v13学習ガイドの内容は、すべてのレベルの候補者にとって非常に簡単に理解できます、あなたは100%合格率を達成するのは難しいと考えるかもしれません。

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