| Broker 46. Which of the following are difference between RPC and RMI? | | | Typically structured atop request/reply method | | | | Offer similar levels of transparency | | | | Use the full expressive power of the object oriented programming model | | | | Support programming with interfaces | 7. Which of the following are true about distributed systems models Physical models are an absolute representation of the hardware and software composition Architectural models represent the computational and communication tasks of the system Fundamental models represent an abstract perspective of the behavior of the system Temporal models represent the context of time and the operating entities of the system 8. Which of the following are not consequences of resource sharing in distributed systems? Concurrency Message Transmission Independent Failures No Global clock 9. Which of the following are true about TCP Fixed Size Guaranteed Delivery Guaranteed Send Order Bandwidth Efficient 10. Which of the remote invocation methodologies best mimics the human interactive nature of the web Remote Method Invocation Remote Procedure Call Request/Reply 11. Indirect communication paradigms are closely related to which coupling methodology space coupled / time coupled space coupled / time uncoupled space uncoupled / time uncoupled space uncoupled / time uncoupled 12. What is the application software defined entry/exit point for interprocess communication? Socket Port Endpoint Interface 13. Which network device limits external traffic to the internal network? Switch Router Firewall 14. Which indirect communication paradigm supports a one-to-one relationship with the sender and receiver? Publish/Subscribe Message Queue Group Membership Shared Memory 15. What is the operating system software entry and exit point for interprocess communication Socket Port Endpoint Interface 16. The remote invocation methodologies of Request/Reply,Remote Procedure Call/Remote Method Invocation are implemented as which of the following Asynchronous / Direct Asynchronous / Indirect Synchronous / Direct Synchronous / Indirect 17. Which of the following are true about REST (Representational State Transfer) Always contain XML Are client-server Are Stateless Provide a uniform interface 18. A service oriented architecture (SOA) aligns services (web) with Technical strategy Business Value Implementation effectiveness Location Transparency 19. Which of the following are true about SOAP (Simple Object Access Protocol) Contains XML headers and bodies Contains directives for message processing Contains layout tags Can contain encrypted sections 20. Which of the following are characteristics of paravirtualization ? Multiple O/S Guests per Host Same O/S Guests per Host Streamlined Hardware Invocation Modified Guest Kernel Emulated Hardware Invocation Potential License Savings on Guests 21. RPC (Remote Procedure Call) is Direct Communication Time uncoupled Space Coupled Asynchronous 22. Which network device is responsible for connecting the local area network to the internet? Switch Router VPN Firewall Proxy 23. Which of the remote invocation methodologies best align with the context of object oriented programming Request/Reply Remote Procedure Call Remote Method Invocation 24. Which of the following are characteristics of cloud computing Massive Scale Maximize Resource Utilization Network Tolerance On Demand Access Space Uncoupled Data Intensive 25. Which of the following indexing methodologies produces the most network bandwidth for peer to peer networks? DHT Random Walk Query flood Centralized 26. Which of the following are characteristics of "FULL" of virtualization ? Multiple O/S guests per host Same O/S Guests per host Streamlined Hardware Invocation Modified Guest Kernel Emulated Hardware Invocation Potential Licensing Savings on Guests 27. Which of the following is true about the tenants of transperancy Access transparency may conflict with security Mobility transparency may conflict with replication Location transparency may conflict with scaling Concurrency transparency may conflict with performance 28. What is middleware A layer of software to mask heterogeniety A medium in which to connect end points A way to connect hardware and software Supports abstraction for process communication 29. What is the difference between tiered and layered architectures Tiered deals with vertical organization of abstraction Layering deals with placement of functionality across hosts or nodes Tiered deals with the application stacks Layering deals with the placement of nodes Tiered deals with the placement of applications across layers Layered deals with the placement of application across Tiers 30. Which of the following are benefits of a monolithic kernel? Easier to Maintain Efficient Execution Dynamic Code Mature Code 31. In Naptster's music sharing service which of the following are NOT true? Changed the dynamics of music and media distribution for ever The courts would hold Napster liable for its centralized music indexing and ultimately force the closure of the service Responses to Napster download queries were guaranteed Napster's network overlay compensated for fluctuations in network dynamics apster demonstrated one of the first at scale storage systems 32. Which of the following protocols assists in the routing of messages in a packet-switched network? NAT RIP TCPIP VLAN ARP 33.Which of the following defines network latency? The time from the start of the transmission to the end of the receipt of the transmission The time from the end of the send of the transmission to the beginning of the receipt of the transmission The time from the start of the transmission to the beginning of the receipt of the transmission The time from the end of the send of the transmission to the end of the receipt of the transmission 34. Which object oriented principles are distributed objects built on encapsulation constraint data abstraction regular expression object classification 35. Asynchronous communication is A reliable form of communication Time-Uncoupled A direct form of communcation Space coupled 36. Which networking device extends an internal network beyond the security perimeter Firewall Proxy VPN Switch Router 37. Which of the following are characteristics of OS Partitioning Style of Virtualization Multiple O/S guests per host Same O/S Guests Streamlined Hardware Invocation Modified Guest Kernel Emulated Hardware Invocation Potential Licensing Savings on Guests 38.Interprocess communication in distributed systems can warrant multicast in which of the following cases when messages require guaranteed delivery when multiple event are to be delivered to multiple recipients when messages require send order when a single message is to be delivered to multiple recipients 39. Which of the following are benefits of a micro kernel ? Easier to Maintain Efficient Execution Dynamic Code Mature Code 40. Which of the following are true about UDP Variable size Guaranteed Delivery Guaranteed Send Order Bandwidth Efficient | 
