1.
Da bi se odredili ključni akteri u mreži:
Correct Answer
A. Potrebno je posmatrati sve 4 mere centralnosti
2.
Ukoliko grafu društvene mreže želi da se doda i podatak o broju razmenjenih poruka između 2 čvora u nekom vremenskom periodu, onda se on dodaje preko:
Correct Answer
A. Težine ivice
Explanation
The correct answer is "Težine ivice" (weight of the edge). When adding the information about the number of exchanged messages between two nodes in a social network graph, it is done through the weight of the edge connecting those nodes. The weight represents the strength or intensity of the relationship between the nodes, in this case, the number of messages exchanged.
3.
Most je (u analizi društvenih mreža grafovima):
Correct Answer
C. Veza koja povezuje 2 klastera
Explanation
The correct answer is "Veza koja povezuje 2 klastera" because in the analysis of social networks using graphs, a "cluster" refers to a group of nodes that are densely connected to each other but sparsely connected to nodes outside the cluster. Therefore, a link that connects two clusters would be a connection between two distinct groups within the network.
4.
U usmerenoj mreži od n čvorova broj mogućih ivica je:
Correct Answer
A. N*(n-1)
Explanation
In a directed network with n nodes, the number of possible edges is given by n*(n-1). This is because for each node, there are n-1 possible edges that can be connected to other nodes. Therefore, multiplying the number of nodes by the number of possible edges for each node gives us the total number of possible edges in the network.
5.
Dijametar mreže je:
Correct Answer
B. Najduža najkraća putanja između bilo koja 2 čvora u mreži
Explanation
The correct answer is "Najduža najkraća putanja između bilo koja 2 čvora u mreži". This means that it is the longest shortest path between any two nodes in the network, indicating the maximum distance that can be traveled while still taking the shortest route. It implies that there may be multiple paths between two nodes, but the longest shortest path is the one being referred to here.
6.
Broker je (u analizi društvenih mreža-grafovima):
Correct Answer
D. Čvor koji povezuje dva klastera
Explanation
A broker in social network analysis refers to a node that connects two or more clusters. Clusters are groups of nodes that are densely connected within themselves but have fewer connections between them. Therefore, a broker acts as a bridge between different clusters, facilitating communication and information flow between them. This concept is important in understanding network dynamics and identifying influential nodes in a social network.
7.
Prosečna dužina najkraćih putanja između svaka dva čvora u mreži je metrika koja se koristi kada se:
Correct Answer
A. U mreži dužine najkraćih putanja znatno razlikuju
Explanation
This metric is used when the lengths of the shortest paths in the network significantly differ. It helps to quantify and compare the average length of the shortest paths between any two nodes in the network. By calculating this metric, we can determine the extent to which the lengths of the shortest paths vary in the network, which can provide insights into the network's structure and connectivity.
8.
Tranzitivnost zajedno sa homofilijom dovodi do:
Correct Answer
B. Stvaranja klikova
Explanation
Transitivity, along with homophily, leads to the formation of cliques.
9.
Putanja je:
Correct Answer
A. Sekvenca čvorova koja povezuje čvorove A i B, a u kojoj se
čvorovi ne ponavljaju
Explanation
The correct answer is the first option, "Sekvenca čvorova koja povezuje čvorove A i B, a u kojoj se čvorovi ne ponavljaju." This means that a path is a sequence of nodes that connects nodes A and B, and in which the nodes do not repeat.
10.
Kako bi glasila interpretacija sopstvene centralnosti (eigenvector centrality) u kontekstu društvenih mreža:
Correct Answer
C. U kojoj meri je data osoba povezana sa uticajnim, odnosno
dobro povezanim članovima mreže
Explanation
The interpretation of eigenvector centrality in the context of social networks is the extent to which a person is connected to influential or well-connected members of the network. This measure considers not only the number of direct connections a person has but also the importance of those connections. It takes into account the influence and connectivity of the individuals that a person is connected to, rather than just the number of connections they have.
11.
Klikovi su:
Correct Answer
C. Potpuno povezani klasteri
Explanation
The answer "Potpuno povezani klasteri" is correct because it refers to fully connected clusters. In a fully connected cluster, every node is directly connected to every other node within the cluster. This means that there are no isolated nodes or disconnected subgroups within the cluster. In contrast, "Slabo povezane mreže" refers to loosely connected networks, "Slabo povezani klasteri" refers to loosely connected clusters, and "Trijade" refers to a concept in social network analysis.
12.
Kako bi glasila interpretacija betweenness centrality (broj čvorova između kojih se čvor nalazi) u kontekstu društvenih mreža:
Correct Answer
A. Koliko je verovatno da je data osoba posrednik između neke
druge dve osobe iz date mreže
Explanation
Interpretacija betweenness centrality u kontekstu društvenih mreža se odnosi na verovatnoću da je data osoba posrednik između neke druge dve osobe iz date mreže. Ova mera meri koliko često se određeni čvor nalazi na najkraćim putevima između ostalih čvorova u mreži. Ako je neka osoba često na putu između drugih ljudi, to ukazuje na to da ima veću verovatnoću da je posrednik u komunikaciji ili prenosu informacija između tih ljudi.
13.
Blizina čvora(closeness centrality) označava:
Correct Answer
A. Blizinu posmatranog čvora centralnoj poziciji
Explanation
The closeness centrality measures the proximity of a node to other nodes in a network. It calculates the average shortest path length from the node to all other nodes in the network. Therefore, the correct answer suggests that closeness centrality represents the proximity of the observed node to the central position in the network.
14.
Ako postoji bar jedna putanja između bilo koja dva čvora mreže, onda je ta mreža:
Correct Answer
C. Povezana
Explanation
The correct answer is "Povezana" (Connected). This means that if there is at least one path between any two nodes in the network, then the network is connected. In other words, all nodes in the network are reachable from any other node through a series of connections.
15.
Gustina mreže se definiše kao količnik:
Correct Answer
A. Broj stvarnih veza u mreži / ukupan broj mogućih veza u mreži
Explanation
The correct answer is "Broj stvarnih veza u mreži / ukupan broj mogućih veza u mreži". This is because the density of a network is defined as the ratio of the actual number of connections in the network to the total number of possible connections in the network.
16.
Betweenness centrality označava:
Correct Answer
C. Broj čvorova između kojih se posmatrani čvor nalazi
Explanation
Betweenness centrality measures the number of nodes between which the observed node lies. It quantifies the extent to which a node serves as a bridge or intermediary between other nodes in a network. Nodes with high betweenness centrality can control the flow of information or resources between different parts of the network, making them influential in the network structure.
17.
Fenomen malog sveta je teza koja kaže da:
Correct Answer
B. Se do svake osobe može doći preko kratkog lanca društvenih
poznanstava
Explanation
The correct answer suggests that it is possible to reach any person through a short chain of social acquaintances. This concept is known as the "small world phenomenon" or "six degrees of separation." It implies that within a social network, individuals are connected to each other through a relatively small number of intermediaries. This idea gained popularity after the famous "Milgram experiment" in the 1960s, where participants were asked to send a message to a target person through their social contacts, and it was found that the average number of intermediaries was around six.
18.
Kako bi glasila interpretacija blizine čvora (closeness centrality) u kontekstu društvenih mreža:
Correct Answer
D. Koliko brzo data osoba može da dopre do bilo koje druge osobe
u mreži
Explanation
Interpretacija blizine čvora (closeness centrality) u kontekstu društvenih mreža se odnosi na koliko brzo data osoba može da dopre do bilo koje druge osobe u mreži. Ova mera meri prosečnu udaljenost između datog čvora i svih ostalih čvorova u mreži. Što je manja udaljenost, to je veća blizina čvora. Ova interpretacija se fokusira na efikasnost komunikacije i dostupnost informacija u mreži.
19.
Simelijeve veze:
Correct Answer
B. Opisuju međusobne veze između tri čvora
Explanation
The correct answer is "Opisuju međusobne veze između tri čvora." This answer is supported by the given information that "Simelijeve veze" describe the mutual connections between three nodes.
20.
Izlazni stepen čvora (outdegree) je:
Correct Answer
A. Predstavlja broj izlaznih veza za posmatrani čvor
Explanation
The correct answer is "Predstavlja broj izlaznih veza za posmatrani čvor" which means "It represents the number of outgoing links for the observed node". This is the correct answer because the outdegree of a node in a graph refers to the number of edges that originate from that node, or in other words, the number of links that go out from the node to other nodes in the graph.
21.
Kada dva odvojena klastera poseduju neredudantne informacije onda nastaju:
Correct Answer
B. Strukturne rupe
Explanation
When two separate clusters have non-redundant information, it leads to the formation of structural holes.
22.
Ukoliko je prosečan stepen realne (online) društvene mreže onda, za nasumično izabrani čvor, očekivani stepen:
Correct Answer
A. Je manji od n
Explanation
The given question is in Serbian and it translates to: "If the average degree of a real (online) social network is n, then for a randomly selected node, the expected degree is: less than n, equal to n, greater than n, or independent of the network degree." The correct answer is "Je manji od n" which means "less than n" in English. This means that on average, the degree of a randomly selected node in the social network is expected to be less than the average degree of the network.
23.
Kako bi glasila interpretacija stepena čvora (degree centrality) u kontekstu društvenih mreža:
Correct Answer
C. Koliko drugih ljudi može datu osobu direktno da kontaktira
Explanation
The interpretation of degree centrality in the context of social networks is the number of other people that a given person can directly contact. Degree centrality measures the number of direct connections a node has in a network, indicating how well connected and accessible that person is within the network.
24.
Rastojanje između dva čvora je:
Correct Answer
B. Dužina najkraće putanje između posmatrana dva čvora
Explanation
The distance between two nodes is defined as the length of the shortest path between the two nodes.
25.
Tendencija čvorova da se spajaju sa čvorovima sličnih karakteristika naziva se:
Correct Answer
A. Homofilija
Explanation
Homofilija refers to the tendency of nodes to connect with nodes that have similar characteristics. In other words, nodes in a network are more likely to form connections with other nodes that share similar attributes or traits. This can be observed in various social networks where individuals with similar interests, backgrounds, or characteristics tend to form connections with each other. Homofilija plays a significant role in shaping the structure and dynamics of social networks, as it contributes to the formation of clusters or communities within the network.
26.
Koja je tvrdnja tačna:
Correct Answer
D. Čvorovi grafa predstavljaju entitete između kojih posmatramo
veze
Explanation
The correct answer states that nodes in a graph represent entities between which we observe connections. This means that the nodes in a graph represent the entities or objects of interest, and the connections between the nodes represent the relationships or interactions between these entities. This is a common way to interpret and analyze graphs in various fields, including social networks.
27.
Grafove realnih (online) društvenih mreža karakteriše:
Correct Answer
D. Postojanje velikog broja malih dobro povezanih grupa
Explanation
The correct answer suggests that real (online) social networks are characterized by the presence of a large number of small, well-connected groups. This means that while there may be many small groups within the network, the members within each group are closely connected to each other. This is in contrast to options such as a small number of large, loosely connected groups or a large number of small, loosely connected groups.
28.
Stepen čvora (degree centrality) označava:
Correct Answer
D. Koliko čvorova je direktno povezano sa posmatranim čvorom
Explanation
Degree centrality measures the number of nodes directly connected to a given node. It quantifies the importance or influence of a node based on its connections to other nodes in the network. In other words, it represents how many nodes are directly linked to the observed node.
29.
Šta je na slici označeno znakom pitanja (?)?
Correct Answer
B. Ivica
Explanation
On the given picture, the object marked with a question mark is a "Ivica" which translates to "Edge" in English.
30.
Na slici se nalazi:
Correct Answer
A. Lista ivica grafa
Explanation
The correct answer is "Lista ivica grafa" because the image represents a graphical representation of a graph, where the edges are represented by a list of pairs of vertices. This is commonly known as an edge list or lista ivica in Serbian. The other options, such as "Matrica susedstva" (adjacency matrix), "Graf" (graph), and "Stepen čvora" (degree of a vertex), do not accurately describe the representation shown in the image.
31.
Metrika mreže broj veza po čvoru (links per node) se definiše kao količnik:
Correct Answer
B. Broj stvarnih veza u mreži / ukupan broj čvorova u mreži
Explanation
The correct answer is "Broj stvarnih veza u mreži / ukupan broj čvorova u mreži". This is because the metric "links per node" is defined as the ratio of the number of actual connections in the network to the total number of nodes in the network.
32.
Proces rasta mreže u kome velika većina novih čvorova pristupa mreži kroz uspostavljanje konekcije sa čvorovima koji već imaju visok stepen, opisuje:
Correct Answer
D. Preferential attachment
Explanation
Preferential attachment is a process in network growth where the majority of new nodes connect to existing nodes that already have a high degree. This means that popular nodes with many connections are more likely to attract new connections, leading to the rich-get-richer phenomenon in network formation. This process can explain the growth of certain social networks or the distribution of links on the internet, where highly connected nodes tend to become even more connected over time.
33.
U neusmerenoj mreži od n čvorova broj mogućih ivica je:
Correct Answer
B. N*(n-1)/2
Explanation
The given question is asking for the number of possible edges in an undirected network with n nodes. The formula to calculate the number of edges in an undirected network is n*(n-1)/2. This formula accounts for the fact that each node can be connected to every other node once, but it avoids counting the same edge twice. Therefore, the correct answer is n*(n-1)/2.
34.
Veličina mreže se odnosi na:
Correct Answer
D. Broj čvorova u mreži
Explanation
The correct answer is "Broj čvorova u mreži" which translates to "Number of nodes in the network" in English. This means that the size of the network refers to the number of nodes or vertices present in the network. The size of a network does not refer to the number of links or connections, the diameter of the network, or the ratio of nodes to links.
35.
U datom primeru na slici, ukoliko se posmatra stepen čvora (degree centrality):
Correct Answer
A. Čvor 10 je ključni
Explanation
In the given example, if we are considering the degree centrality, the node 10 is the most important.
36.
Na slici se nalazi:
Correct Answer
D. Matrica susedstva
Explanation
The correct answer is "Matrica susedstva". The image shows a representation of a graph, where each node is connected to its adjacent nodes through edges. The matrix representation of this graph, known as the adjacency matrix or "Matrica susedstva" in Serbian, is a square matrix that indicates the connections between nodes. Each element in the matrix represents whether there is an edge between two nodes or not. This matrix is commonly used in graph theory and various algorithms for analyzing and manipulating graphs.
37.
Inteligencija koja nastaje saradnjom i takmičenjem više pojedinaca naziva se:
Correct Answer
D. Kolektivna inteligencija
Explanation
Kolektivna inteligencija se odnosi na inteligenciju koja se razvija kroz saradnju i takmičenje više pojedinaca. Ova vrsta inteligencije omogućava grupi da rešava probleme, donosi odluke i stvara inovativna rešenja na efikasan način. Kroz zajednički rad i razmenu ideja, kolektivna inteligencija može biti veća od inteligencije pojedinaca koji je čine, što je osnova za uspeh koncepta "mudrosti gomile" ili "wisdom of crowds". Crowdsourcing i folksonomija su srodni koncepti, ali se odnose na druge aspekte kolektivne inteligencije.
38.
Pod društvenim kapitalom se podrazumeva:
Correct Answer
C. Se smatra kapital čija je osnova u društvenim odnosima a koji
doprinosi privrednom i socijalnom razvoju društva
Explanation
Pod društvenim kapitalom se podrazumeva kapital čija je osnova u društvenim odnosima, a koji doprinosi privrednom i socijalnom razvoju društva. Ovo znači da društveni kapital obuhvata resurse kao što su mreže socijalnih veza, poverenje, recipročnost i saradnja među ljudima i organizacijama. Kroz ove društvene veze i resurse, društveni kapital može pozitivno uticati na ekonomski rast i razvoj zajednice, kao i na socijalnu koheziju i blagostanje.
39.
Do zatvaranja mreže dolazi ukoliko:
Correct Answer
C. Su veze između aktera jake
Explanation
The correct answer suggests that network closure occurs when there are strong connections between actors. This means that the individuals or entities within the network have strong ties or relationships with each other, which contributes to the overall cohesion and interconnectedness of the network. Strong connections between actors can lead to increased collaboration, information sharing, and mutual support within the network, ultimately resulting in network closure.
40.
Nedostatak crowdsourcing-a je:
Correct Answer
C. Nema kontrole nad razvojem ili krajnjim proizvodom
Explanation
Crowdsourcing involves outsourcing tasks to a large group of people, typically through an online platform. One drawback of crowdsourcing is the lack of control over the development or final product. Since the tasks are delegated to a diverse group of individuals, there is a possibility that the end result may not meet the desired standards or expectations. This lack of control can lead to inconsistencies in the quality, design, or functionality of the product or solution being crowdsourced.
41.
Google Page Rank je primer:
Correct Answer
D. Kolektivne inteligencije
Explanation
The correct answer is "Kolektivne inteligencije" (Collective intelligence). Google Page Rank is an example of collective intelligence because it uses the collective knowledge and opinions of internet users to determine the relevance and importance of web pages. The algorithm analyzes the links between pages and assigns a rank based on the collective intelligence of the online community.
42.
Premošćući društveni kapital:
Correct Answer
D. Je generisan slabim vezama
Explanation
The correct answer is "Je generisan slabim vezama" which means "It is generated by weak ties". This explanation suggests that social capital is formed through connections with people who are in different social positions. Weak ties refer to relationships with acquaintances or distant connections, rather than close friends or family members. These weak ties can provide access to new information, resources, and opportunities, contributing to the generation of social capital.
43.
Formiranje mreže poverenja bez centralnog sistema odlučivanja koji kontroliše ponašanje i utiče na povinovanje:
Correct Answer
B. Se smatra prednošću za odlučivanje mudrih gomila
Explanation
The correct answer is "Se smatra prednošću za odlučivanje mudrih gomila". This means that forming a trust network without a central decision-making system is considered an advantage for wise crowds. This suggests that decentralized decision-making allows for more independent and diverse perspectives, leading to better collective decisions. However, it is important to note that this advantage may only apply to small-scale crowds.
44.
Za veze između prijatelja i između rođaka važi:
Correct Answer
C. Da su to jake veze
Explanation
The correct answer is that the relationships between friends and relatives are strong. This is because the question states that "veze između prijatelja i između rođaka važi" which translates to "the relationships between friends and relatives are valid." Therefore, it can be inferred that these relationships are strong, as the word "jake" means strong in the given options.
45.
Praksa dobijanja potrebnih usluga, ideja ili sadržaja traženjem doprinosa širokog kruga ljudi (posebno online zajednice) a ne na tradicionalni način (od zaposlenih) naziva se:
Correct Answer
C. Crowdsourcing
Explanation
Crowdsourcing is the practice of obtaining necessary services, ideas, or content by seeking contributions from a wide range of people, especially online communities, rather than through traditional means such as employees.
46.
Folksonomija je:
Correct Answer
A. Naziv za servis koji omogućava obeležavanje sadržaja na Web-u od strane svakog pojedinca
Explanation
Folksonomija je naziv za servis koji omogućava obeležavanje sadržaja na Web-u od strane svakog pojedinca. Ova praksa omogućava korisnicima da dodaju oznake (tagove) sadržaju kako bi ga organizovali, pretraživali i delili sa drugima. Ove oznake su obično reči ili kratke fraze koje opisuju sadržaj i omogućavaju korisnicima da ga lakše pronađu. Folksonomija je demokratski pristup kategorizaciji i organizaciji sadržaja na Web-u, jer je svaki pojedinac slobodan da dodaje oznake prema sopstvenom razumevanju i interesovanjima.
47.
Društveno tehnički kapital se odnosi na:
Correct Answer
A. Upotrebu tehnologije za generisanje društvenog kapitala
Explanation
The correct answer is "Upotrebu tehnologije za generisanje društvenog kapitala." This means that social-technical capital refers to the use of technology to generate social capital. It implies that technology can be utilized to enhance social connections, networks, and relationships, leading to the creation of social capital.
48.
Različitost mišljenja, nezavisnost, decentralizacija i agregacija su uslovi:
Correct Answer
C. NeopHodni da bi gomila bila mudra
Explanation
The given answer suggests that diversity of thinking, independence, decentralization, and aggregation are necessary conditions for a crowd to be wise. This implies that in order for a group to make wise decisions or come up with intelligent solutions, it is important to have a variety of perspectives, individual autonomy, a decentralized decision-making process, and the ability to combine and analyze different opinions.
49.
Povezujući društveni kapital:
Correct Answer
A. Je generisan jakim vezama
Explanation
Povezujući društveni kapital je kapital koji nastaje povezivanjem ljudi koji se nalaze na različitim društvenim položajima. Ova vrsta kapitala se generiše kroz jake veze, što znači da su veze između ljudi dublje i intenzivnije. To omogućava razmenu resursa, informacija i podrške među povezanim pojedincima, što može biti od velike koristi za sve uključene.
50.
Spajajući društveni kapital:
Correct Answer
B. Je kapital koji nastaje povezivanjem ljudi koji se nalaze na različitim društvenim položajima
Explanation
The correct answer is "Je kapital koji nastaje povezivanjem ljudi koji se nalaze na različitim društvenim položajima." This means that social capital is generated by connecting people who are in different social positions. This suggests that having connections with individuals from diverse backgrounds and social positions can contribute to the development of social capital.