Answer:
noise, hazardous material, burns, electric shocks, moving parts.
Explanation:
i got it right on edge
Generally I'd recommend not buying one online, tends to be cheaper from a shop - and better used, although their are some risks with 2nd hand devices, I think the big price cut it worth it.
If you did want to buy online, maybe Amazon or Ebay?
Answer:
a. 2100
b. 2199
Explanation:
GIven that:
The file size = 1000 MB
The payload size is = 100 bytes
The negotiated window size is = 1000 bytes.
This implies that the sliding window can accommodate maximum number of 10 packets
The sender receives an ACK 1200 from the receiver.
Total byte of the file is :
1000 MB = 1024000000 bytes
a.
Sender receives an ACK 1200 from the receiver but still two packets are still unacknowledged
=1200 + 9 * 100
= 1200 + 900
= 2100
b. What is the last byte number that can be sent without an ACK being sent by the receiver?
b. Usually byte number starts from zero, in the first packet, the last byte will be 99 because it is in 1000th place.
Thus; the last byte number send is :
= 1200 + 10 *100 -1
= 1200 + 1000-1
= 1200 + 999
= 2199
B. They make it easy to take panoramic photographs of the crime scene.
Explanation:
- SLR is the single-lens reflex analog camera with dated looks. Traditional SLR has more manual controls and no monitor on the rear.
- A DSLR or Digital Single Lens Reflex camera is a facelift of the traditional SLRs. They are pricey but have the power of capturing minutest details.
- SLRs give more opportunity for creativity. They give an important competition to digital cameras in pixel output too.
- However, if the quality is paramount invest in a good SLR.
