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• 3. Consider the two-dimensional array a:double a[] [] - new double[250] [250] ；where each double occ
• 7. 某實驗有 9 件血液樣本，將其混合成一組樣本作一次檢驗。假設每件血液樣本檢驗呈陽性的機率都是 0.1，且只要有一件血液樣本呈陽性反應，其混合的樣本也會呈陽性反應。當混合的樣本檢驗結果呈陰性反應時
• 2. 給定相異兩點 A、 B ，試問空間中能使 ∆PAB 形成一正三角形的所有點 P 所成的圖形為下列哪一選項？(A) 兩個點 (B) 一線段 (C) 一直線(D) 一圓 (E) 一平面
• 3. 在 展開式中，p9q3項的係數為何？(A) −1320 (B) −220 (C) 12(D) 220 (E) 1320
• 【題組】(c) (5 %) What is the threshold voltage of this n-MOSFET?
• 【題組】20. If A and B are any 2x2 matrices, then AB = BA.
• 【題組】21. The matrix is not invertible.
• 【題組】1.2 What is the binary represent ntation of the decimal value -0.5 in single precision format?
• 【題組】(4) What is the many-to-one multithreading model? What are the two drawbacks of this model? (3%)
• 2.(Menory Maiageneut: ]【題組】(1) What are the purposes of base and limit registers?
• 【題組】(2) Give the six steps to handle a page-fault event.
• 【題組】(3) Let average page-fault time and memory-access time be 80us and 240ns, respectively. What is
• 【題組】(4) Suppose that it takes 35ns and 105ns to search TLB and access memory, respectively. If TLB h
• 3. [Storage and I/O Management: ]【題組】(1) What are the two functions supported by a VFS (virtual file
• 【題組】(2) Consider a disk queue with requests for I/O to blocks on cylinders 103, 188, 42, 120, 7, 138
• 【題組】(3) Explain seek time, rotational latency, and random-access time for disks.
• 【題組】(4) Explain the two major types of memory-mapped I/O.
• 4. [Synchronization and Deadlock: ]【題組】(1) Explain how the deadlock prevention scheme works.
• 【題組】(2) Give three requirements for any solution to the critical-section problem.
• 【題組】(3) What is the priority inversion problem? How to solve it?
• 【題組】(4) What is conflict serializable for a non-serial schedule?
• 5. [Security: ]【題組】(1) How to launch an attack of stack and buffer overflow?
• 【題組】(2) Explain the two major types of symmetric encryption.
• 【題組】(3) Explain how the RSA algorithm works.
• 【題組】(4) How does the digital-signature algorithm work?