Answer:
a) Yes
b) Yes
c) Yes
d) No
e) Yes
f) No
Explanation:
a) All single-bit errors are caught by Cyclic Redundancy Check (CRC) and it produces 100 % of error detection.
b) All double-bit errors for any reasonably long message are caught by Cyclic Redundancy Check (CRC) during the transmission of 1024 bit. It also produces 100 % of error detection.
c) 5 isolated bit errors are not caught by Cyclic Redundancy Check (CRC) during the transmission of 1024 bit since CRC may not be able to catch all even numbers of isolated bit errors so it is not even.
It produces nearly 100 % of error detection.
d) All even numbers of isolated bit errors may not be caught by Cyclic Redundancy Check (CRC) during the transmission of 1024 bit. It also produces 100 % of error detection.
e) All burst errors with burst lengths less than or equal to 32 are caught by Cyclic Redundancy Check (CRC) during the transmission of 1024 bit. It also produces 100 % of error detection.
f) A burst error with burst length greater than 32 may not be caught by Cyclic Redundancy Check (CRC) during the transmission of 1024 bit.
Cyclic Redundancy Check (CRC) does not detect the length of error burst which is greater than or equal to r bits.
Answer:
https
Explanation:
The "s" stands for "secure"
Answer:
typeof operator returns the data type of the data it acts upon
Explanation:
“typeof” is a operator in javascript which “returns” the “data type” of the given data.
For eg:
<script>
document.write(typeof “John” )
document.writeln(typeof new Date();
document.writeln(typeof 10+20);
document.writeln(typeof 20.4);
document.writeln(typeof function(){});
</script>
The above code is a sample javascript code to explain “typeof” operator. As per the program the first line returns “String”, second returns “date”, third line returns integer”, the next line returns “float” and the last line returns “function”. So, from this we can “conclude” that the “typeof” operator returns data type.
Answer:
b) A laptop system with a 2.13 GHz processor, 4 gigabytes of RAM, and a 171 monitor
Explanation:
Out of the options in the question above, the most suitable computer she could use for physical presentations in her class would be to take her laptop.
The device's comfortability and, mobility, and suitability comes first before considering the specifications like memory compatibility.
A desktop system with a good speed, might not be easy to carry around.
A workstation, which is like a desktop computer, terminal, is more designed for more advance uses. Moreover, it is also not easy to move around.
A handheld computer would be a good fit since it is smaller than a laptop, hence could be easily moved around. But it would fit better if to be used personally in the classroom maybe as a notebook, writing tool.
The laptop here has a bigger memory, better processor, and if a projector is absent, screen could be easily shared with the rest of the class.
Answer:
f = 2
Explanation:
g(x) = cos(x/2) - 3x=w where w=-3.5 or -1 or -38.5
13– (13/2)-3*13=-3.5 (1st d value of g(x))
-1-(-1/2)-3*(-1)=-1 (the 2nd possible value)
g(x) = cos(x/2) - 3x=-1 where the first x=13 and the 2nd one=-1
where the first x=-1 and the 2nd one=-38.5 (the 3rd value)
g(x) = cos(x/2) - 3x)=0 where cos(x/2=-3.5
g(f(x)) = cos(f(x)/2) - 3 aka 0.5 f(x) = cos(2x+5 aka 7x) (x/2 - 3 =aka -1 );
(2x+5) = 7x by definition but the equation has to be set to 7 to find x)
(7x/2 -6x=0) -7 on both sides
x/2–6x=-7
x/2= 13
26/2=x
x=13 (these values are set up for 2x+5=7.
13-(-7)=-7
13-6+-1=-7
the 2nd x=-1
gfx=cos*2*x i.e cos*2*13 or cos*2*-1
cos*2*13=26
cos*2*(-1)=-1
cos=1
(cos*2*13)=the 1st gfx value=26 basically.
( cos*2*(-13)=-26 (the 2nd gfx value)
cos*2*(-1)=-`1 (the 3rd gfx value)
f=2
hope this helped!