Question Completion with Options:
A. Embedding & packing malcode in application programs
B. Replacing the Import-Address-Table (IAT)
C. Appending & prepending malcode into application programs
D. Embedding malcode in documents, such as MS O Office & PDF
Ε. Replicating malcode's source code
Answer:
The most effective technique of malware propagation among the following list is:
A. Embedding & packing malcode in application program
Explanation:
Malware propagation becomes effective and replicates effortlessly when malicious codes (otherwise called malcodes, which are self-replicating malicious programs) are embedded and packed in application programs. These usually take many years before they start to manifest, making them very difficult to detect. They are often triggered by some set events. Given the nature of malcodes and the culprits behind them, they are very dangerous to applications and pose substantial business risks.
Answer:
vw = fλ
Explanation:
Sound, like all waves, travels at a certain speed and has the properties of frequency and wavelength. You can observe direct evidence of the speed of sound while watching a fireworks display. The flash of an explosion is seen well before its sound is heard, implying both that sound travels at a finite speed and that it is much slower than light. You can also directly sense the frequency of a sound. Perception of frequency is called pitch. The wavelength of sound is not directly sensed, but indirect evidence is found in the correlation of the size of musical instruments with their pitch. Small instruments, such as a piccolo, typically make high-pitch sounds, while large instruments, such as a tuba, typically make low-pitch sounds. High pitch means small wavelength, and the size of a musical instrument is directly related to the wavelengths of sound it produces. So a small instrument creates short-wavelength sounds. Similar arguments hold that a large instrument creates long-wavelength sounds.
The relationship of the speed of sound, its frequency, and wavelength is the same as for all waves: vw = fλ, where vw is the speed of sound, f is its frequency, and λ is its wavelength. The wavelength of a sound is the distance between adjacent identical parts of a wave—for example, between adjacent compressions as illustrated in Figure 2. The frequency is the same as that of the source and is the number of waves that pass a point per unit time.
Answer:
He finished at 2:40 P.M.
Explanation:
This is because 80 minutes= 1 hour and 20 minutes. Add 1 hour and 20 minutes to 2:40, which equals 4:00.
The correct answer is B. false.
Determining which color goes first is not random at all - it is a rule in chess that the White player will always start the game first, and will then be followed by the Black player.
