Questions (15)
Q26ESE2026
Consider the following statements regarding quantum dots
- A photon's polarization can be vertical or horizontal, or a superposition of both, and we can use this as a qubit
- Neutral atoms can be trapped at low temperatures using a magneto optical trap, which uses magnetic fields and lasers to cool and trap the atoms
- An electron can be bound to a small semiconductor device, similar to an electron bound to the nucleus of an atom. In these "artificial atoms", the spin of an electron, which can be "spin up" or "spin down", can be used as a qubit
Which of the above statements is/are correct ?
- A 1 only
- B 2 only
- C 3 only
- D 1, 2 and 3
Answer key not yet available (pending official release)
Engineering › Electronics
Q27ESE2026
Five routers are to be connected in a point-to-point subnet. Between each pair of routers, the designers may put a high-speed line, a medium-speed line, a low-speed line, or no line. If it takes 100 ms of computer time to generate and inspect each topology, how long will it take to inspect all of them ?
- A 108,578·6 sec
- B 102,785·6 sec
- C 110,857·6 sec
- D 104,857·6 sec
Answer key not yet available (pending official release)
Engineering › Electronics
Q28ESE2026
A group of N stations share a 56-kbps pure ALOHA channel. Each station outputs a 1000-bit frame on average once every 100 sec, even if the previous one has not yet been sent (e.g., the stations can buffer outgoing frames). What is the maximum value of N ?
- A 1003 stations
- B 1100 stations
- C 1010 stations
- D 1030 stations
Answer key not yet available (pending official release)
Engineering › Electronics
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