Soft Desigh and Development Engineer Examintion(Afternoon, part 1) docx

MINISTRY OF SCIENCE AND TECHNOLOGY HOÀ LC HIGH TECH PARK MANAGEMENT BOARD VIETNAM IT EXAMINATION AND TRAINING SUPPORT CENTER (VITEC) SOFTWARE DESIGN AND DEVELOPMENT ENGINEER EXAMINATION 26 th January 2003 Afternoon I Do not open the exam booklet until instructed to do so. Inquiries about the exam questions will not be answered. B KHOA HC VÀ CÔNG NGH BAN QUN LÝ KHU CÔNG NGH CAO HOÀ LC TRUNG TÂM SÁT HCH CÔNG NGH THÔNG TIN VÀ H TR ÀO TO (VITEC) SÁT HCH K S THIT K VÀ PHÁT TRIN PHN MM Ngày 26 tháng 1 nm 2003 Phn thi bui chiu I Không m đ thi trc khi đc phép. Các thc mc v câu hi thi s không đc tr li 2003 VITEC Software Design and Development Engineer Examination (Afternoon, Part 1) Questions must be answered in accordance with the following: Question Nos. Q1-Q6 Question Selection All questions are compulsory Examination Time 13:00-15:00 (120 minutes) Instructions: 1. Use an HB pencil. If you need to change an answer, erase your previous answer completely and neatly. Wipe away any eraser debris. 2. Mark your examinee information and test answers in accordance with the instructions below. Your test will not be graded if you do not mark properly. Do not mark or write on the answer sheet outside of the prescribed places. (1) Examinee Number Write your examinee number in the space provided, and mark the appropriate space below each digit. (2) Date of Birth Write your date of birth (in numbers) exactly as it is printed on your examination admission card, and mark the appropriate space below each digit. (3) Write each answer in the space specified for that question. Answer can be written in English or Vietnamese. (4) Write your answers clearly and neatly. Answers that are difficult to read will receive a lower score. 3. After the test, you may take this question booklet home with you. Do not open the exam booklet until instructed to do so. In q uiries about the exam q uestions will not be answered. 2003 VITEC Class II Information Technology Engineer Examination - Afternoon Sát hch K s Thit k và Phát trin phn mm (Bui chiu - Phn 1) Các câu hi phi đc tr li tuân theo điu sau: S hiu câu hi 6 câu t Q1 đn Q6 Câu hi la chn Tt c các câu hi đu bt buc Thi gian sát hch 13:00 ~ 15:00 (120 phút) Hng dn: 1. Dùng bút chì HB. Nu bn cn đi câu tr li, hãy xoá ht câu tr li trc. Phi sch bi ty trên giy. 2. ánh du thông tin sát hch và câu tr li sát hch ca bn theo hng dn di đây. Bài sát hch ca bn s không đc chm nu bn không đánh du đúng. ng đánh du hay vit lên t giy tr li bên ngoài ch đã qui đnh. (1) S hiu thí sinh Hãy vit s hiu thí sinh  ch đã cho, và đánh du vào ch thích hp di mi ch s. (2) Ngày sinh Hãy vit ngày sinh ca bn (theo s) đích xác nh nó đc in trong phiu d thi, và đánh du vào ch thích hp di mi ch s. (3) Hãy vit câu tr li ti v trí đc dành cho câu hi đó. Câu tr li có th vit bng ting Anh hoc ting Vit. (4) Hãy tr li mt cách rõ ràng và gãy gn. Nhng câu tr li khó đc s b đim thp. 3. Cui gi thi, bn có th gi li b đ thi này. Không m tp giy thi chng nào cha đc hng dn làm nh vy. Mi vic hi thêm v các câu hi sát hch s không đc tr li. 2003 VITEC Class II Information Technology Engineer Examination - Afternoon Sát hch K s Thit k và Phát trin phn mm (Bui chiu - Phn 1) Các câu hi phi đc tr li tuân theo điu sau: S hiu câu hi 6 câu t Q1 đn Q6 Câu hi la chn Tt c các câu hi đu bt buc Thi gian sát hch 13:00 ~ 15:00 (120 phút) Hng dn: 1. Dùng bút chì HB. Nu bn cn đi câu tr li, hãy xoá ht câu tr li trc. Phi sch bi ty trên giy. 2. ánh du thông tin sát hch và câu tr li sát hch ca bn theo hng dn di đây. Bài sát hch ca bn s không đc chm nu bn không đánh du đúng. ng đánh du hay vit lên t giy tr li bên ngoài ch đã qui đnh. (1) S hiu thí sinh Hãy vit s hiu thí sinh  ch đã cho, và đánh du vào ch thích hp di mi ch s. (2) Ngày sinh Hãy vit ngày sinh ca bn (theo s) đích xác nh nó đc in trong phiu d thi, và đánh du vào ch thích hp di mi ch s. (3) Hãy vit câu tr li ti v trí đc dành cho câu hi đó. Câu tr li có th vit bng ting Anh hoc ting Vit. (4) Hãy tr li mt cách rõ ràng và gãy gn. Nhng câu tr li khó đc s b đim thp. 3. Cui gi thi, bn có th gi li b đ thi này. Không m tp giy thi chng nào cha đc hng dn làm nh vy. Mi vic hi thêm v các câu hi sát hch s không đc tr li. 1 2 2003 VITEC Software Design and Development Engineer Examination (Afternoon, Part 1) Questions must be answered in accordance with the following: Question Nos. Q1-Q6 Question Selection All questions are compulsory Examination Time 13:00-15:00 (120 minutes) Instructions: 1. Use an HB pencil. If you need to change an answer, erase your previous answer completely and neatly. Wipe away any eraser debris. 2. Mark your examinee information and test answers in accordance with the instructions below. Your test will not be graded if you do not mark properly. Do not mark or write on the answer sheet outside of the prescribed places. (1) Examinee Number Write your examinee number in the space provided, and mark the appropriate space below each digit. (2) Date of Birth Write your date of birth (in numbers) exactly as it is printed on your examination admission card, and mark the appropriate space below each digit. (3) Write each answer in the space specified for that question. (4) Write your answers clearly and neatly. Answers that are difficult to read will receive a lower score. 3. After the test, you may take this question booklet home with you. Do not open the exam booklet until instructed to do so. In q uiries about the exam q uestions will not be answered. 1 2 3 Q1. Read the following text regarding IP address assignments in a corporate network implementation, then answer Sub-Questions 1 through 3. Company K has decided to implement a corporate network based on IP (Internet Protocol Version 4). As shown in Figure 1, this network consists of a total of five LANs, of which one is a main office LAN and four are branch office LANs. The LANs are connected to each other using leased lines via routers. The maximum number of connected hosts (devices, including routers, that perform communication are called hosts) is 50 for the main office LAN, and 20 for each branch office LAN. Branch office LAN 3 (20 hosts) Branch office LAN 4 (20 hosts) Branch office LAN 2 (20 hosts) Branch office LAN 1 (20 hosts) Main office LAN (50 hosts) Fig. 1 Implementation of Company K’s Corporate Network IP addresses are expressed as 32 bits of data to uniquely specify a host connected to the network. As shown in Figure 2, an IP address consists of a network part and a host part. The host part is further divided between a subnet ID and a host ID for purposes such as effective use of addresses. The network ID in the network part, together with the subnet ID of the host part, are also called a subnet address. IP address (32 bits) Network part Network ID Host part Subnet ID Host ID Subnet address Fig. 2 IP Address Configuration In this case, a subnet address identifies a LAN, and a host ID identifies an individual host in that LAN. One network ID is assigned to Company K’s entire network comprising the five LANs. In addition, one subnet ID is assigned to each LAN, and one unique host ID is assigned to each host within each LAN. It should be noted that it is not necessary to assign subnet addresses to the leased line parts between the LANs. The IP address notation method employed involves expressing every eight bits as values in decimal notation, and delimiting these values with periods (“.”). In this case, a 24-bit network ID, consisting of “223.x.255” (where x is a certain decimal number), is assigned to the Company K network using this notation method. The remaining 8-bit host part is assigned a subnet ID and host ID as appropriate to complete the subnet address assignment for each LAN. In order to express a subnet address, it is necessary to indicate the number of bits it has. Therefore, after the IP address expression in which the host ID is “0”, a forward slash (“/”) is used as a delimiter and the number of bits in the subnet address is expressed as a decimal number. For example, it may be expressed as “223.x.255.16/28”. Any bit pattern other than all zeroes or all ones may be used as the host ID specifying a host. Likewise, any bit pattern other than all zeroes or all ones may be used as the subnet ID. The router to be used is a model with the functions required for this problem. Sub-Question 1 What are the appropriate words to insert in blanks a and b in the paragraph below, which pertains to IP addresses and routers? In order to send IP packets to a receiver across LANs, a router is used in connecting the LANs together. The router looks at the receiver’s IP address in the received IP packets to determine the next destination for the IP packets. If the subnet address of the receiver’s IP address specifies LAN a , then it is sent directly to the receiver’s host; otherwise, it is sent to the next appropriate b . 4 [...]... of candidates for each of them Company C will select one main unit and one disk system from the candidates, and will build the server by combining them A condition for the new server is that CPU utilization be 10% or less when existing programs are executed Disk capacity is estimated at 60 GB for storing data and programs The specifications and performance for these candidates are as follows: (1) Main... NOT, AND, and OR as logical operations, and use =, as comparative operations Assume that the comparative operators are evaluated before the logical operators The precedences of comparative operators are all the same in the evaluation, and the logical operators are evaluated in the following order: NOT, AND, OR Sub-Question 3 With method B, show with r the following items required in the get and. .. items from Figure 1 and the table above, in order to create a normalized relational table (1) Arrange the data items from Figure 1, insert the appropriate words in blanks d a through below, and complete the normalized relational table In addition, underline the item(s) serving as a primary key a Course_table (course_code, , instructor_number) b College _and_ department_table (college _and_ department_code,... adversely affected 23 2003 VITEC Software Design and Development Engineer Examination (Afternoon, Part 1) Questions must be answered in accordance with the following: Question Nos Q1-Q6 Question Selection All questions are compulsory Examination Time 13:00-15:00 (120 minutes) Instructions: 1 Use an HB pencil If you need to change an answer, erase your previous answer completely and neatly Wipe away any eraser... when there is one CPU Pn = P1 (1 + 0.05( n – 1)) / n 12 (3) Disk system specifications and performance Both disk systems X and Y are RAID systems X is RAID1 and Y is RAID5 The operation rates and access times of the individual disks forming these systems are equivalent to each other Sub-Question 1 Answer the following questions regarding the main units (1) If main unit B is selected, how many CPUs are... systems X and Y, and taking into a account reliability in the event of a failure Enter a numerical value for , and enter equations for b and c In this case, the operation rate of a single disk is d in all cases Table 2 Disk system X Y Disk System Configuration Number of disks (count) in Capacity (GB) Operation rate minimum configuration per disk b 2 60 a c 30 13 Sub-Question 3 The following text is part. .. days_of_attendance) Student table (student_ID_number, college _and_ department_code, student_name) (2) Arrange the data items from the table above, insert the appropriate words in blanks h e through , and complete the normalized relational table In addition, underline the item(s) serving as a primary key Student_table (Student_ID_number, college _and_ department_code, student_name, e ) Preparatory_seminar_table... conventions in the legend in Figure 2 Course Fig 3 Attendance status Student Preparatory seminar Instructor College and department Participating preparatory seminar E-R Diagram for New System Sub-Question 4 Define the cursor “preparatory seminar participants’ list” for creating a preparatory seminar i n participants’ list Enter the appropriate words in blanks through in the SQL statements below i FOR SELECT... activity_location, student_table student_name, student_table student_ID_number, student_table contact_telephone_number, participating_preparatory_seminar_table entry_date FROM Preparatory_seminar_table, participating_preparatory_seminar_table, student_table, instructor_table WHERE j AND k AND l AND m ORDER BY n 22 Sub-Question 5 Enter the appropriate words in blanks o through q in the following text pertaining... College and department Grade Days attended E99-1543 John Smith Economics, Economics 60 12 S00-0227 Charlie Cree Sociology, Social Welfare 75 14 90 15 55 10 … … T01-1025 Mike Gordon U01-7941 Mary Carpenter … … … Fig 1 Engineering, Electrical Engineering General Information Studies, AI Layout of “Table of Students’ Attendance by Course” 19 Table: Output Requirements for the “Preparatory Seminar Participants’ . MINISTRY OF SCIENCE AND TECHNOLOGY HOÀ LC HIGH TECH PARK MANAGEMENT BOARD VIETNAM IT EXAMINATION AND TRAINING SUPPORT CENTER (VITEC) SOFTWARE DESIGN AND DEVELOPMENT ENGINEER EXAMINATION . mc v câu hi thi s không đc tr li 2003 VITEC Software Design and Development Engineer Examination (Afternoon, Part 1) Questions must be answered in accordance with the following:. s không đc tr li. 1 2 2003 VITEC Software Design and Development Engineer Examination (Afternoon, Part 1) Questions must be answered in accordance with the following: